46295 + Interview Questions in Chemistry

1.	A water treatment plant treating 10 MLD of water requires 20 mg/L of filter Alum Al2(SO4)3.18H20. Water has 6 mg/L of alkalinity as CaCO3 .( Al = 26.97, S = 32, 0 = 16, H = 1, Ca = 40, and C = 12) Quantity of quick lime required (106 mg per year as CaO) shall be
Answer» A water treatment plant treating 10 MLD of water requires 20 $m g / L$ of filter Alum $A l_{2} (S O_{4})_{3} .18 H_{2} 0$ . Water has 6 $m g / L$ of alkalinity as $C a C O_{3}$ . ( Al = 26.97, S = 32, 0 = 16, H = 1, Ca = 40, and C = 12) Quantity of quick lime required ( $10^{6}$ mg per year as CaO) shall be

Discussion

2.	In which of these substitution nucleophilic unimolecular rate is fast ( I) chlorobenzene (2) chloromethane
Answer» In which of these substitution nucleophilic unimolecular rate is fast ( I) chlorobenzene (2) chloromethane

Discussion

3.	The pair in which phosphorous atoms have a formal oxidation state of +3 is:
Answer» The pair in which phosphorous atoms have a formal oxidation state of +3 is:

Discussion

4.	Which of the following does not contain any coordinate bond?
Answer» Which of the following does not contain any coordinate bond?

Discussion

5.	What is the hybridization of beryllate ion [Be(OH) 4]^2-
Answer» What is the hybridization of beryllate ion [Be(OH) 4]^2-

Discussion

6.	Supposing the energy of 4th shell for H atom is -50 a.u.(arbitary unit) What would be its ionisation potential A.50 B.800 C.15.4 D.20.8
Answer» Supposing the energy of 4th shell for H atom is -50 a.u.(arbitary unit) What would be its ionisation potential A.50 B.800 C.15.4 D.20.8

Discussion

7.	four charges q,-q,q,-q are placed in order on the four consecutive corners of a square of side L. The work done in interchanging the position of any two neighbouring charges of the opposite sign is
Answer» four charges q,-q,q,-q are placed in order on the four consecutive corners of a square of side L. The work done in interchanging the position of any two neighbouring charges of the opposite sign is

Discussion

8.	Consider the following statements concerning food chains (A) Removal of 80% tigers from an area resulted in increased growth of vegetation (B) Removal of most of the carnivores resulted in an increased population of deers (C) The length of food chains is generally limited to 3-4 trophic levels. (D) The length of food chains may vary from 2 to 8 trophic levels. Which two of the above statements are correct?
Answer» Consider the following statements concerning food chains (A) Removal of 80% tigers from an area resulted in increased growth of vegetation (B) Removal of most of the carnivores resulted in an increased population of deers (C) The length of food chains is generally limited to 3-4 trophic levels. (D) The length of food chains may vary from 2 to 8 trophic levels. Which two of the above statements are correct?

8.

Consider the following statements concerning food chains (A) Removal of 80% tigers from an area resulted in increased growth of vegetation (B) Removal of most of the carnivores resulted in an increased population of deers (C) The length of food chains is generally limited to 3-4 trophic levels. (D) The length of food chains may vary from 2 to 8 trophic levels. Which two of the above statements are correct?

Answer»

Consider the following statements concerning food chains

(A) Removal of 80% tigers from an area resulted in increased growth of vegetation

(B) Removal of most of the carnivores resulted in an increased population of deers

(C) The length of food chains is generally limited to 3-4 trophic levels.

(D) The length of food chains may vary from 2 to 8 trophic levels.

Which two of the above statements are correct?

Discussion

9.	In a crystalline solid, atoms of X form fcc packing and the atoms of Y occupy all the octahedral voids. If all the atoms along one body diagonal are removed ,then the simplest formula of the crystalline solid will be:
Answer» In a crystalline solid, atoms of X form fcc packing and the atoms of Y occupy all the octahedral voids. If all the atoms along one body diagonal are removed ,then the simplest formula of the crystalline solid will be:

Discussion

10.	The kinetic theory of gases perdicts that total kinetic energy of a gaseous assembly depends on
Answer» The kinetic theory of gases perdicts that total kinetic energy of a gaseous assembly depends on

10.

The kinetic theory of gases perdicts that total kinetic energy of a gaseous assembly depends on

Answer»

The kinetic theory of gases perdicts that total kinetic energy of a gaseous assembly depends on

Discussion

11.	Which is stronger bond in between polar and non polar covalent bonds,and why
Answer» Which is stronger bond in between polar and non polar covalent bonds,and why

Discussion

12.	How many groups are there in mendeleev's periodic table?
Answer» How many groups are there in mendeleev's periodic table?

Discussion

13.	ntno of aldehyde and ketone formed by molecular formula C5H10 O isn nt1)5 2)8 3)7 4)4ntntn
Answer» ntno of aldehyde and ketone formed by molecular formula C5H10 O isn nt1)5 2)8 3)7 4)4ntntn

Discussion

14.	In which of the following reaction(s) H2O2 acts as a reducing agent?
Answer» In which of the following reaction(s) $H_{2} O_{2}$ acts as a reducing agent?

Discussion

15.	For a gas CP−CV= R in a state P and CP−CV=(1.10) R in a state Q. TP and TQ are the temperatures in two different states P and Q respectively. Then,
Answer» For a gas $C_{P} - C_{V} = R$ in a state $P$ and $C_{P} - C_{V} = (1.10) R$ in a state $Q$ . $T_{P}$ and $T_{Q}$ are the temperatures in two different states $P$ and $Q$ respectively. Then,

Discussion

16.	A solution of nickel sulphate in which nickel rod is dipped is diluted 10 times. The reduction potential of Ni at 298 K
Answer» A solution of nickel sulphate in which nickel rod is dipped is diluted 10 times. The reduction potential of Ni at 298 K

Discussion

17.	In the manufacture of polythene by the Ziegler process using ethene, the temperature for proper polymerisation required is
Answer» In the manufacture of polythene by the Ziegler process using ethene, the temperature for proper polymerisation required is

Discussion

18.	62. An impure sample of pyrolusite are (MnO2) consist of 70% MnO2, 20% inert gases and rest is moisture.On strong heating all MnO2 is converted into MnO along with formation of O2.The % of Mn in dried sample is
Answer» 62. An impure sample of pyrolusite are (MnO2) consist of 70% MnO2, 20% inert gases and rest is moisture.On strong heating all MnO2 is converted into MnO along with formation of O2.The % of Mn in dried sample is

Discussion

19.	The activation energy for most of the reactions is approximately 50kj per mol .the value of temperature co efficient for such reactions is 1) approx 2 2)approx 3 3)4
Answer» The activation energy for most of the reactions is approximately 50kj per mol .the value of temperature co efficient for such reactions is 1) approx 2 2)approx 3 3)<1 4)>4

Discussion

20.	what is oxidation no. of Fe in Na4\lbrack Fe(CN)5(NOS)\rbrack
Answer» what is oxidation no. of Fe in Na4\lbrack Fe(CN)5(NOS)\rbrack

Discussion

21.	Electrical energy produced by a reversible electrochemical cell is given by the free energy decrease (–Δ G) of the reaction occurring in the cell. According to Gibbs- Helmholtz equation, decrease in free energy is given by –Δ G=–Δ H–T[δ(Δ G)δ T]P where –Δ H is the decrease in enthalpy of the cell reaction at constant pressure. EMF of the cell, E=−ΔHnF+T[δ Eδ T]P. By measuring the emf of the cell and its temperature co-efficient, thermodynamic quantities like Δ H,Δ G and Δ S can be determined. Standard emf of the cell is related to equilibrium constant of the cell reaction as E0=2.303RTlog knF. The standard emf of the cell, ZnZn+2Fe+3 Fe+2(S)(aq)(aq) (aq) Pt at 25∘C is 1.53 V and at 50∘C is 1.55 V. The value of ΔS∘ for the overall reaction is
Answer» Electrical energy produced by a reversible electrochemical cell is given by the free energy decrease $(- Δ G)$ of the reaction occurring in the cell. According to Gibbs- Helmholtz equation, decrease in free energy is given by $- Δ G = - Δ H - T {[\frac{δ (Δ G)}{δ T}]}_{P}$ where $- Δ H$ is the decrease in enthalpy of the cell reaction at constant pressure. EMF of the cell, $E = \frac{- Δ H}{n F} + T {[\frac{δ E}{δ T}]}_{P}$ . By measuring the emf of the cell and its temperature co-efficient, thermodynamic quantities like $Δ H, Δ G$ and $Δ S$ can be determined. Standard emf of the cell is related to equilibrium constant of the cell reaction as $E^{0} = \frac{2.303 R T l o g k}{n F}$ . The standard emf of the cell, $\begin{matrix} Z n & Z n^{+ 2} & F e^{+ 3} F e^{+ 2} (S) & (a q) & (a q) (a q) \end{matrix}$ Pt at $25^{\circ}$ C is 1.53 V and at $50^{\circ}$ C is 1.55 V. The value of $Δ S^{\circ}$ for the overall reaction is

Discussion

22.	24. I effect operates in both sigma and pi bond. (true/ false)
Answer» 24. I effect operates in both sigma and pi bond. (true/ false)

Discussion

23.	Effective atomic number of central metal in the complexes K2[Ni(CN)4],[Cu(NH3)4]SO4 and K2[PtCl6] are x, y and z respectively. Calculate the value of x+y+z5
Answer» Effective atomic number of central metal in the complexes $K_{2} [N i (C N)_{4}], [C u (N H_{3})_{4}] S O_{4}$ and $K_{2} [P t C l_{6}]$ are $x$ , $y$ and $z$ respectively. Calculate the value of $\frac{x + y + z}{5}$

Discussion

24.	Describe Bohr’s model of the atom.Give two postulates of the Bohr's atomic model.
Answer» Describe Bohr’s model of the atom. Give two postulates of the Bohr's atomic model.

Discussion

25.	30.Mechanism of formation of alkene by tertiary alcohol in presence of Copper .
Answer» 30.Mechanism of formation of alkene by tertiary alcohol in presence of Copper .

Discussion

26.	Dimerisation of NO2 is an exothermic reaction. if enthalpy of reaction is delta H,then the min value of activation energy for forward reaction will b
Answer» Dimerisation of NO2 is an exothermic reaction. if enthalpy of reaction is delta H,then the min value of activation energy for forward reaction will b

Discussion

27.	Répondez aux questions suivantes.1. Que prenez - vous pour votre petit - déjeuner?2. Qu'est - ce que les français prennent pour leur dîner?3. Est - ce que tu aimes la musique classique?4. Est - ce que votre maison est loin de l'école?5. Quels sont les meubles de votre salle à manger?6. Qu'est - ce que vous aimez porter dans la maison?
Answer» Répondez aux questions suivantes. 1. Que prenez - vous pour votre petit - déjeuner? 2. Qu'est - ce que les français prennent pour leur dîner? 3. Est - ce que tu aimes la musique classique? 4. Est - ce que votre maison est loin de l'école? 5. Quels sont les meubles de votre salle à manger? 6. Qu'est - ce que vous aimez porter dans la maison?

Discussion

28.	Find the correct relationship:
Answer» Find the correct relationship:

Discussion

29.	12. dieldrin, an insecticide, contains C,H,Cl and O.combustion of 29.72 mg of dieldrin gave 41.21 mg CO2 and 5.63 mg of H2O. In a separate analysis 25.31 mg of dieldrin was converted into 57.13 mg AgCl. what is the empirical formula of dieldrin.
Answer» 12. dieldrin, an insecticide, contains C,H,Cl and O.combustion of 29.72 mg of dieldrin gave 41.21 mg CO2 and 5.63 mg of H2O. In a separate analysis 25.31 mg of dieldrin was converted into 57.13 mg AgCl. what is the empirical formula of dieldrin.

Discussion

30.	Using the provided pKa values for fully protonated proline, determine an isoelectric point at which the amino acid exist mostly in its zwitter ionic form.
Answer» Using the provided $p K_{a}$ values for fully protonated proline, determine an isoelectric point at which the amino acid exist mostly in its zwitter ionic form.

Discussion

31.	the number of electrons involved when 1 mole of h2o2 decomposes as H2O2→ H20+O2, IS
Answer» the number of electrons involved when 1 mole of h2o2 decomposes as H2O2→ H20+O2, IS

Discussion

32.	A student added a drop of red food colouring to 4 beakers of water. Each beaker contained 100 ml of water at different temperatures. The student recorded how long it took each beaker to mix completely (without stirring). The following table shows her results: What conclusion should the student make from this experiment about the movement of the particles?
Answer» A student added a drop of red food colouring to 4 beakers of water. Each beaker contained 100 ml of water at different temperatures. The student recorded how long it took each beaker to mix completely (without stirring). The following table shows her results: What conclusion should the student make from this experiment about the movement of the particles?

32.

A student added a drop of red food colouring to 4 beakers of water. Each beaker contained 100 ml of water at different temperatures. The student recorded how long it took each beaker to mix completely (without stirring). The following table shows her results: What conclusion should the student make from this experiment about the movement of the particles?

Answer»

A student added a drop of red food colouring to 4 beakers of water. Each beaker contained 100 ml of water at different temperatures. The student recorded how long it took each beaker to mix completely (without stirring). The following table shows her results:

What conclusion should the student make from this experiment about the movement of the particles?

Discussion

33.	For propanoic acid Ka=1.34×10−5 M at 25∘C. Then what will be the degree of dissociation for a 0.01 M solution of the acid ?
Answer» For propanoic acid $K_{a} = 1.34 \times 10^{- 5} M$ at $25^{\circ} C$ . Then what will be the degree of dissociation for a $0.01 M$ solution of the acid ?

Discussion

34.	3. Which of the following is correct statement regarding PCl5? (1) Hybridization of P-atom is sp3d2 in gaseous state and sp3 in solid state (2) All P-Cl bonds are having same bond length (3) Coordination number of P-atom is 5 in solid PCl5 (4) All of these
Answer» 3. Which of the following is correct statement regarding PCl5? (1) Hybridization of P-atom is sp3d2 in gaseous state and sp3 in solid state (2) All P-Cl bonds are having same bond length (3) Coordination number of P-atom is 5 in solid PCl5 (4) All of these

Discussion

35.	Match the following:List IList IIi) Riboflavin p) Beri beriii) Thiamineq) Scurvyiii) Pyridoxiner) Cheilosisiv) Ascorbic acids) Convulsions
Answer» Match the following: $\begin{matrix} List I & List II i) Riboflavin & p) Beri beri ii) Thiamine & q) Scurvy iii) Pyridoxine & r) Cheilosis iv) Ascorbic acid & s) Convulsions \end{matrix}$

Discussion

36.	On heating 0.199 g of a metallic oxide in a stream of hydrogen, 0.045 g of water is formed. Calculate the equivalent weight of the metal:
Answer» On heating $0.199 g$ of a metallic oxide in a stream of hydrogen, $0.045 g$ of water is formed. Calculate the equivalent weight of the metal:

Discussion

37.	If 10g of ice at -10°C is mixed with 10g of steam at 100°c. Calculate mixture of the temperature and also the composition of the mixture.
Answer» If 10g of ice at -10°C is mixed with 10g of steam at 100°c. Calculate mixture of the temperature and also the composition of the mixture.

Discussion

38.	the bond dissociation energies of X2, Y2 and XY are in the ratio of 1:0.5:1.△ H for the formation of XY is -200 kj/mole. the bond dissociation energy of X2 will be
Answer» the bond dissociation energies of X2, Y2 and XY are in the ratio of 1:0.5:1.△ H for the formation of XY is -200 kj/mole. the bond dissociation energy of X2 will be

Discussion

39.	in neutron induced fission of 92U235 nucleus usable energy of 185Mev is released if a 92U235 i continuously operating it at a power level of 100 Mw how long will it take for 1 kg of uranium to be consumed in energy
Answer» in neutron induced fission of 92U235 nucleus usable energy of 185Mev is released if a 92U235 i continuously operating it at a power level of 100 Mw how long will it take for 1 kg of uranium to be consumed in energy

Discussion

40.	Match the List-I with List-II by using the postulates of VBT of complexes List I List II(P)[Ni(CN)4]2− (1)sp3hybridization(Q)[Ni(CO)4] (2)dsp2hybridization(R)[Cu(NH3)4]2+(3)μ=0 BM(S)[Pd(Cl)4]2− (4)μ=1.732 BM
Answer» Match the List-I with List-II by using the postulates of VBT of complexes $L i s t I L i s t I I \begin{matrix} (P) [N i (C N)_{4}]^{2 -} & (1) s p^{3} hybridization (Q) [N i (C O)_{4}] & (2) d s p^{2} hybridization (R) [C u (N H_{3})_{4}]^{2 +} & (3) μ = 0 B M (S) [P d (C l)_{4}]^{2 -} & (4) μ = 1.732 B M \end{matrix}$

40.

Match the List-I with List-II by using the postulates of VBT of complexes List I List II(P)[Ni(CN)4]2− (1)sp3hybridization(Q)[Ni(CO)4] (2)dsp2hybridization(R)[Cu(NH3)4]2+(3)μ=0 BM(S)[Pd(Cl)4]2− (4)μ=1.732 BM

Answer»

Match the List-I with List-II by using the postulates of VBT of complexes

$L i s t I L i s t I I \begin{matrix} (P) [N i (C N)_{4}]^{2 -} & (1) s p^{3} hybridization (Q) [N i (C O)_{4}] & (2) d s p^{2} hybridization (R) [C u (N H_{3})_{4}]^{2 +} & (3) μ = 0 B M (S) [P d (C l)_{4}]^{2 -} & (4) μ = 1.732 B M \end{matrix}$

Discussion

41.	32. How to find bond energy?
Answer» 32. How to find bond energy?

Discussion

42.	How to write whether the compound is single or double or triple bond
Answer» How to write whether the compound is single or double or triple bond

Discussion

43.	Molar conductance of a 0.01 M aqueous solution of KCl is 150 S cm2 mol−1 and the resistance of the solution is 190 ohm. Using the same conductance cell, the resistance of a 0.01 M ammonia solution was 2460 ohm. Find Kb (base ionization constant) of ammonia. Ionic conductance of NH+4 and OH− are 73.4 and 198.6 S cm2 mol−1 respectively.
Answer» Molar conductance of a 0.01 M aqueous solution of $K C l$ is $150 S c m^{2} m o l^{- 1}$ and the resistance of the solution is 190 ohm. Using the same conductance cell, the resistance of a 0.01 M ammonia solution was 2460 ohm. Find $K_{b}$ (base ionization constant) of ammonia. Ionic conductance of $N H_{4}^{+}$ and $O H^{-}$ are $73.4$ and $198.6 S c m^{2} m o l^{- 1}$ respectively.

Discussion

44.	The enthalpies for the following reactions at 25°C are given.12 H2(g) + 12 O2(g)→OH(g); △H = 10.06 K calH2(g)→2H(g); △H = 104.18 K calO2(g)→2O(g); △H = 118.32 K calCalculate the OH bond energy in the O - H group
Answer» The enthalpies for the following reactions at 25°C are given. $\frac{1}{2} H_{2} (g) + \frac{1}{2} O_{2} (g) \to O H (g); △ H = 10.06 K c a l$ $H_{2} (g) \to 2 H (g); △ H = 104.18 K c a l$ $O_{2} (g) \to 2 O (g); △ H = 118.32 K c a l$ Calculate the OH bond energy in the O - H group

Discussion

45.	AB crystallizes in a body centred cubic lattice with edge length 'a' equal to 387 pm. The distance between two oppositively charged ions in the lattice isA300 pmB335 pmC250 pmD200 pm
Answer» AB crystallizes in a body centred cubic lattice with edge length 'a' equal to 387 pm. The distance between two oppositively charged ions in the lattice is A 300 pm B 335 pm C 250 pm D 200 pm

Discussion

46.	The modulus of the complex number(6i−312i+9) is
Answer» The modulus of the complex number $(\frac{6 i - 3}{12 i + 9})$ is

Discussion

47.	What volume of 0.4 M Na2S203 would be required to react with the l2 liberated by adding excess of Ki to 50 ml of 0.2 M CuS04, when in reaction cuprous salt is formed with 12?ptions:25 ml11.2 ml50 ml5 ml
Answer» What volume of 0.4 M Na2S203 would be required to react with the l2 liberated by adding excess of Ki to 50 ml of 0.2 M CuS04, when in reaction cuprous salt is formed with 12? ptions: 25 ml 11.2 ml 50 ml 5 ml

Discussion

48.	How zaitsev's rule is applied to 3-bromo heptane?
Answer» How zaitsev's rule is applied to 3-bromo heptane?

Discussion

49.	What is the reason behind the decrease and increase in the strength of two types of charges?
Answer» What is the reason behind the decrease and increase in the strength of two types of charges?

Discussion

50.	According to Einstein's photoelectric equation, the graph between the kinetic energy of the photoelectrons ejected and the frequency of the incident radiation is:
Answer» According to Einstein's photoelectric equation, the graph between the kinetic energy of the photoelectrons ejected and the frequency of the incident radiation is:

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

A water treatment plant treating 10 MLD of water requires 20 mg/L of filter Alum Al2(SO4)3.18H20. Water has 6 mg/L of alkalinity as CaCO3 .( Al = 26.97, S = 32, 0 = 16, H = 1, Ca = 40, and C = 12) Quantity of quick lime required (106 mg per year as CaO) shall be

In which of these substitution nucleophilic unimolecular rate is fast ( I) chlorobenzene (2) chloromethane

The pair in which phosphorous atoms have a formal oxidation state of +3 is:

Which of the following does not contain any coordinate bond?

What is the hybridization of beryllate ion [Be(OH) 4]^2-

Supposing the energy of 4th shell for H atom is -50 a.u.(arbitary unit) What would be its ionisation potential A.50 B.800 C.15.4 D.20.8

four charges q,-q,q,-q are placed in order on the four consecutive corners of a square of side L. The work done in interchanging the position of any two neighbouring charges of the opposite sign is

In a crystalline solid, atoms of X form fcc packing and the atoms of Y occupy all the octahedral voids. If all the atoms along one body diagonal are removed ,then the simplest formula of the crystalline solid will be:

The kinetic theory of gases perdicts that total kinetic energy of a gaseous assembly depends on

Which is stronger bond in between polar and non polar covalent bonds,and why

How many groups are there in mendeleev's periodic table?

ntno of aldehyde and ketone formed by molecular formula C5H10 O isn nt1)5 2)8 3)7 4)4ntntn

In which of the following reaction(s) H2O2 acts as a reducing agent?

For a gas CP−CV= R in a state P and CP−CV=(1.10) R in a state Q. TP and TQ are the temperatures in two different states P and Q respectively. Then,

A solution of nickel sulphate in which nickel rod is dipped is diluted 10 times. The reduction potential of Ni at 298 K

In the manufacture of polythene by the Ziegler process using ethene, the temperature for proper polymerisation required is

62. An impure sample of pyrolusite are (MnO2) consist of 70% MnO2, 20% inert gases and rest is moisture.On strong heating all MnO2 is converted into MnO along with formation of O2.The % of Mn in dried sample is

The activation energy for most of the reactions is approximately 50kj per mol .the value of temperature co efficient for such reactions is 1) approx 2 2)approx 3 3)4

what is oxidation no. of Fe in Na4\lbrack Fe(CN)5(NOS)\rbrack

24. I effect operates in both sigma and pi bond. (true/ false)

Effective atomic number of central metal in the complexes K2[Ni(CN)4],[Cu(NH3)4]SO4 and K2[PtCl6] are x, y and z respectively. Calculate the value of x+y+z5

Describe Bohr’s model of the atom.Give two postulates of the Bohr's atomic model.

30.Mechanism of formation of alkene by tertiary alcohol in presence of Copper .

Dimerisation of NO2 is an exothermic reaction. if enthalpy of reaction is delta H,then the min value of activation energy for forward reaction will b

Find the correct relationship:

12. dieldrin, an insecticide, contains C,H,Cl and O.combustion of 29.72 mg of dieldrin gave 41.21 mg CO2 and 5.63 mg of H2O. In a separate analysis 25.31 mg of dieldrin was converted into 57.13 mg AgCl. what is the empirical formula of dieldrin.

Using the provided pKa values for fully protonated proline, determine an isoelectric point at which the amino acid exist mostly in its zwitter ionic form.

the number of electrons involved when 1 mole of h2o2 decomposes as H2O2→ H20+O2, IS

For propanoic acid Ka=1.34×10−5 M at 25∘C. Then what will be the degree of dissociation for a 0.01 M solution of the acid ?

3. Which of the following is correct statement regarding PCl5? (1) Hybridization of P-atom is sp3d2 in gaseous state and sp3 in solid state (2) All P-Cl bonds are having same bond length (3) Coordination number of P-atom is 5 in solid PCl5 (4) All of these

Match the following:List IList IIi) Riboflavin p) Beri beriii) Thiamineq) Scurvyiii) Pyridoxiner) Cheilosisiv) Ascorbic acids) Convulsions

On heating 0.199 g of a metallic oxide in a stream of hydrogen, 0.045 g of water is formed. Calculate the equivalent weight of the metal:

If 10g of ice at -10°C is mixed with 10g of steam at 100°c. Calculate mixture of the temperature and also the composition of the mixture.

the bond dissociation energies of X2, Y2 and XY are in the ratio of 1:0.5:1.△ H for the formation of XY is -200 kj/mole. the bond dissociation energy of X2 will be

in neutron induced fission of 92U235 nucleus usable energy of 185Mev is released if a 92U235 i continuously operating it at a power level of 100 Mw how long will it take for 1 kg of uranium to be consumed in energy

Match the List-I with List-II by using the postulates of VBT of complexes List I List II(P)[Ni(CN)4]2− (1)sp3hybridization(Q)[Ni(CO)4] (2)dsp2hybridization(R)[Cu(NH3)4]2+(3)μ=0 BM(S)[Pd(Cl)4]2− (4)μ=1.732 BM

32. How to find bond energy?

How to write whether the compound is single or double or triple bond

The enthalpies for the following reactions at 25°C are given.12 H2(g) + 12 O2(g)→OH(g); △H = 10.06 K calH2(g)→2H(g); △H = 104.18 K calO2(g)→2O(g); △H = 118.32 K calCalculate the OH bond energy in the O - H group

AB crystallizes in a body centred cubic lattice with edge length 'a' equal to 387 pm. The distance between two oppositively charged ions in the lattice isA300 pmB335 pmC250 pmD200 pm

The modulus of the complex number(6i−312i+9) is

What volume of 0.4 M Na2S203 would be required to react with the l2 liberated by adding excess of Ki to 50 ml of 0.2 M CuS04, when in reaction cuprous salt is formed with 12?ptions:25 ml11.2 ml50 ml5 ml

How zaitsev's rule is applied to 3-bromo heptane?

What is the reason behind the decrease and increase in the strength of two types of charges?

According to Einstein's photoelectric equation, the graph between the kinetic energy of the photoelectrons ejected and the frequency of the incident radiation is: