46295 + Interview Questions in Chemistry

1.	Write the equations for conversion of ethyl chloride to nitroethane.
Answer» Write the equations for conversion of ethyl chloride to nitroethane.

Discussion

2.	The minimum distance between the cations in Zinc blende
Answer» The minimum distance between the cations in Zinc blende

Discussion

3.	8. Explain how does a mixture of equimolar amounts of NH4OH and NH4Cl act as a basic buffer when 1)small amounts of acid 2)small amounts of base is added.
Answer» 8. Explain how does a mixture of equimolar amounts of NH4OH and NH4Cl act as a basic buffer when 1)small amounts of acid 2)small amounts of base is added.

Discussion

4.	why resonance effect is not found in meta substituted organic compound ?
Answer» why resonance effect is not found in meta substituted organic compound ?

Discussion

5.	In the reaction given below, the major organic product formed is
Answer» In the reaction given below, the major organic product formed is

Discussion

6.	Predict the major product when 2 methylbut-2-ene is converted into following methods: 1.) Acid catalysed hydration 2.) Hydroboration by BH3-THF
Answer» Predict the major product when 2 methylbut-2-ene is converted into following methods: 1.) Acid catalysed hydration 2.) Hydroboration by BH3-THF

Discussion

7.	30. An element crystallizes in a BCC lattice nearest neighbours and next nearest neighbours of the elements are respectively 1) 8,8 2)8,6 3)6,8 4)6,6
Answer» 30. An element crystallizes in a BCC lattice nearest neighbours and next nearest neighbours of the elements are respectively 1) 8,8 2)8,6 3)6,8 4)6,6

Discussion

8.	For a mercury-steam-sulphur oxide cycle, the heat rejected in the mercury cycle is given to the steam cycle and the heat rejected in the steam cycle is utilized in the sulphur oxide cycle are 0.4 and 0.3 and the overall efficiency is 0.72 then efficiency of the steam cycle is ________%.33.33
Answer» For a mercury-steam-sulphur oxide cycle, the heat rejected in the mercury cycle is given to the steam cycle and the heat rejected in the steam cycle is utilized in the sulphur oxide cycle are 0.4 and 0.3 and the overall efficiency is 0.72 then efficiency of the steam cycle is ________%. 33.33

Discussion

9.	39. Acetylene on reaction with K2Cr2O7+H2SO4→ PRODUCT [O] 1)CH3CHO 2)CH3-CH2-CH3 3)CH3COOH 4)CH3OH
Answer» 39. Acetylene on reaction with K2Cr2O7+H2SO4→ PRODUCT [O] 1)CH3CHO 2)CH3-CH2-CH3 3)CH3COOH 4)CH3OH

Discussion

10.	The major product of the following reaction is:CH3CH=CHCO2CH3LiAlH4−−−−→
Answer» The major product of the following reaction is: $C H_{3} C H = C H C O_{2} C H_{3} L i A l H_{4} - --- \to$

Discussion

11.	How many isomers are possible in [Cr(en)2Br2]?
Answer» How many isomers are possible in $[C r {(e n)}_{2} B r_{2}]$ ?

Discussion

12.	Drive all formula which is made from magnification (m=hi/ho. , m=-v/u. , m=f/f-u. , m=f-v/f)
Answer» Drive all formula which is made from magnification (m=hi/ho. , m=-v/u. , m=f/f-u. , m=f-v/f)

Discussion

13.	Why does the conductivity of a solution decrease with dilution?
Answer» Why does the conductivity of a solution decrease with dilution?

Discussion

14.	What is the meaning that gases ionized
Answer» What is the meaning that gases ionized

Discussion

15.	3. In CCl4 contain a solution whose 0.52g C10H8 elevation in boiling point is 0.402^°C dissociate in same value of CCl4 elevation is 0.65^°C so find the molecular weight of solute 1)85.53 2)181.51 3)94.38 4)160.62
Answer» 3. In CCl4 contain a solution whose 0.52g C10H8 elevation in boiling point is 0.402^°C dissociate in same value of CCl4 elevation is 0.65^°C so find the molecular weight of solute 1)85.53 2)181.51 3)94.38 4)160.62

Discussion

16.	Using the data provided, calculate the multiple bond energy (kJ mol−1) of a C≡C bond in C2H2. That energy is (take the bond energy of a C−H bond as 350 kJ mol−12C(s) + H2(g)→C2H2(g) ΔH=225 kJ mol−12C(s)→2C(g) ΔH=1410 kJ mol−1H2(g)→2H(g) ΔH=330 kJ mol−1
Answer» Using the data provided, calculate the multiple bond energy (kJ $m o l^{- 1}$ ) of a $C \equiv C$ bond in $C_{2} H_{2}$ . That energy is (take the bond energy of a $C - H$ bond as 350 kJ $m o l^{- 1}$ 2C(s) + $H_{2} (g)$ $\to C_{2} H_{2} (g)$ $Δ H = 225 k J m o l^{- 1}$ 2C(s) $\to 2 C (g) Δ H = 1410 k J m o l^{- 1}$ $H_{2} (g) \to 2 H (g) Δ H = 330 k J m o l^{- 1}$

Discussion

17.	Calculate the molarity of 11.7% by mass of NaCl in water. The density of the solution is 1.60 g/mL.(Given, atomic mass Na=23 u, Cl=35.5 u)
Answer» Calculate the molarity of $11.7 %$ by mass of $N a C l$ in water. The density of the solution is $1.60 g / m L$ . (Given, atomic mass $N a = 23 u, C l = 35.5 u$ )

Discussion

18.	What is the correct reactivity order of alkyl halides towards ammonolysis ?
Answer» What is the correct reactivity order of alkyl halides towards ammonolysis ?

Discussion

19.	For 3s orbital of hydrogen atom, the normalised wave function is Ψ3s=1(81)√3π(1a0)32[27−18ra0+2r2a20]e−r3a0 If distance between the radial nodes is d, the value of d1.5 a0 is (two decimal places)(Take √108=10 )
Answer» For 3s orbital of hydrogen atom, the normalised wave function is $Ψ_{3 s} = \frac{1}{(81) \sqrt{3 π}} {(\frac{1}{a_{0}})}^{\frac{3}{2}} [27 - \frac{18 r}{a_{0}} + \frac{2 r^{2}}{a_{0}^{2}}] e^{\frac{- r}{3 a_{0}}}$ If distance between the radial nodes is d, the value of $\frac{d}{1.5 a_{0}}$ is (two decimal places)(Take $\sqrt{108} = 10$ )

Discussion

20.	A metal crystallizes into two cubic phases, face centered cubic (FCC) and body centered cubic (BCC), whose unit cell length are 4.5 ∘A and 3 ∘A, respectively. Calculate the ratio of the densities of the BCC to the FCC lattice.
Answer» A metal crystallizes into two cubic phases, face centered cubic (FCC) and body centered cubic (BCC), whose unit cell length are $4.5 \circ A$ and $3 \circ A$ , respectively. Calculate the ratio of the densities of the BCC to the FCC lattice.

Discussion

21.	Match the reactions given in List I with the number of electrons lost or gained in List II Column−IColumn−IIReactionNumber of electrons lost or gained(P)Mn(OH)2+H2O2→MnO2+2H2O(1)8(Q)AlCl3+3K→Al+3KCl(2)2(R)3Fe+4H2O→Fe3O4+4H2(3)3(S)3H2S+2HNO3→3S+2NO+4H2O(4)6
Answer» Match the reactions given in List I with the number of electrons lost or gained in List II $\begin{matrix} C o l u m n - I & C o l u m n - I I R e a c t i o n & N u m b e r o f e l e c t r o n s l o s t o r g a i n e d (P) & M n (O H)_{2} + H_{2} O_{2} \to M n O_{2} + 2 H_{2} O & (1) & 8 (Q) & A l C l_{3} + 3 K \to A l + 3 K C l & (2) & 2 (R) & 3 F e + 4 H_{2} O \to F e_{3} O_{4} + 4 H_{2} & (3) & 3 (S) & 3 H_{2} S + 2 H N O_{3} \to 3 S + 2 N O + 4 H_{2} O & (4) & 6 \end{matrix}$

Discussion

22.	A 4% solution(w/w) of sucrose (M = 342 g mol–1) in water has a freezing point of 271.15 K. Calculate the freezing point of 5% glucose (M = 180 g mol–1) in water. (Given: Freezing point of pure water = 273.15 K)
Answer» A 4% solution(w/w) of sucrose (M = 342 $g m o l^{- 1})$ in water has a freezing point of 271.15 K. Calculate the freezing point of 5% glucose (M = 180 $g m o l^{- 1})$ in water. (Given: Freezing point of pure water = 273.15 K)

Discussion

23.	What is the shape of SF4?
Answer» What is the shape of $S F_{4}$ ?

Discussion

24.	Predict the major product obtained when the given compound undergoes hydrolysis in the presence of an acid.
Answer» Predict the major product obtained when the given compound undergoes hydrolysis in the presence of an acid.

Discussion

25.	The correct order of the stoichiometries of AgCl formed when AgNO3 in excess is treated with the complexes : CoCl3.6NH3,CoCl3.5NH3,CoCl3.4NH3 respectively is:
Answer» The correct order of the stoichiometries of $A g C l$ formed when $A g N O_{3}$ in excess is treated with the complexes : $C o C l_{3} .6 N H_{3}, C o C l_{3} .5 N H_{3}, C o C l_{3} .4 N H_{3}$ respectively is:

Discussion

26.	Which of the following will give a pair of enantiomers?
Answer» Which of the following will give a pair of enantiomers?

Discussion

27.	Calculate the temperature at which RMS velocity of oxygen becomes 1.5 times its value at NTP.
Answer» Calculate the temperature at which $RMS$ velocity of oxygen becomes $1.5$ times its value at $NTP$ .

Discussion

28.	82.An organic compound contains C ,H & oxygen. Its elemental analysis gave C, 38.71% & H, 9.67%. The empirical formula of the compound would be
Answer» 82.An organic compound contains C ,H & oxygen. Its elemental analysis gave C, 38.71% & H, 9.67%. The empirical formula of the compound would be

Discussion

29.	In a solid AB having the NaCl structure, 'A' atoms occupy the corners of the cubic unit cell. If all the face centred atoms along one of the axes are removed, the resultant stoichiometry of the solid is:
Answer» In a solid AB having the $N a C l$ structure, 'A' atoms occupy the corners of the cubic unit cell. If all the face centred atoms along one of the axes are removed, the resultant stoichiometry of the solid is:

Discussion

30.	The unit cell with crystallographic dimenions
Answer» The unit cell with crystallographic dimenions

Discussion

31.	In column chromatography, the solvent in the saturated solution added initially is absorbed by the dry gelatin mixture present in the burette
Answer» In column chromatography, the solvent in the saturated solution added initially is absorbed by the dry gelatin mixture present in the burette

Discussion

32.	If the value of n+l is more than 3 and less than 6, what will be the possible number of orbitals
Answer» If the value of n+l is more than 3 and less than 6, what will be the possible number of orbitals

Discussion

33.	Which of the following diodes is connected in forward biased connections?
Answer» Which of the following diodes is connected in forward biased connections?

Discussion

34.	How is Bleaching powder prepared? Give its important uses.
Answer» How is Bleaching powder prepared? Give its important uses.

Discussion

35.	A sample of industrial waste water is found to contain 8.2% Na3PO4 and 12% MgSO4 by weight in solution. If % ionisation of Na3PO4 and MgSO4 are 50% and 60% respectively, then its normal boiling point (in °C ) is (2 decimal places). [use Kb(H2O) = 0.50 Kkgmo1−1]:
Answer» A sample of industrial waste water is found to contain 8.2% $N a_{3} P O_{4}$ and 12% $M g S O_{4}$ by weight in solution. If % ionisation of $N a_{3} P O_{4}$ and $M g S O_{4}$ are 50% and 60% respectively, then its normal boiling point (in °C ) is (2 decimal places). [use $K_{b} (H_{2} O)$ = 0.50 $K k g m o 1^{-} 1$ ]:

Discussion

36.	which of the following statement is incorrect? (A) All elements are homogenous. (B) Compounds always contain two or more different elements (C) A mixture is not always heterogeneous. (D) Air is a heterogeneous mixtur
Answer» which of the following statement is incorrect? (A) All elements are homogenous. (B) Compounds always contain two or more different elements (C) A mixture is not always heterogeneous. (D) Air is a heterogeneous mixtur

Discussion

37.	Calculate the mass of sodium acetate requuired to make 500ml of 0.375 molar aqueous solution.molar mass of sodium acetate is 82.0245gm mol^{-1}.
Answer» Calculate the mass of sodium acetate requuired to make 500ml of 0.375 molar aqueous solution.molar mass of sodium acetate is 82.0245gm mol^{-1}.

Discussion

38.	Match the followings List-IList-II(I)Zn(s)+2HCl(aq)→ZnCl2(aq)+H2(g)(P)50% of excess reagent leftAbove reaction is carried out by taking2 moles each of Zn and HCl(II)AgNO3(aq)+HCl(aq)→AgCl(s)+HNO3(aq)(Q)22.4 L of gas at STP is liberatedAbove reaction is carried out by taking170 g AgNO3 and 18.25 g HCl(Ag=108)(III)CaCO3(s)→CaO(s)+CO2(g)(R)1 moles of solid (product) obtained100 g CaCO3 is decomposed(IV)2KClO3(s)→2KCl(s)+3O2(g)(S)HCl is the limiting reagent23 moles of KClO3 decomposed(T)11.2 L of gas at STP is liberated(U)75% of excess reagent left
Answer» Match the followings $\begin{matrix} List-I & List-II (I) & Z n (s) + 2 H C l (a q) \to Z n C l_{2} (a q) + H_{2} (g) & (P) & 50 % of excess reagent left Above reaction is carried out by taking 2 moles each of Z n and H C l (I I) & A g N O_{3} (a q) + H C l (a q) \to A g C l (s) + H N O_{3} (a q) & (Q) & 22.4 L of gas at STP is liberated Above reaction is carried out by taking 170 g A g N O_{3} and 18.25 g H C l (A g = 108) (I I I) & C a C O_{3} (s) \to C a O (s) + C O_{2} (g) & (R) & 1 moles of solid (product) obtained 100 g C a C O_{3} is decomposed (I V) & 2 K C l O_{3} (s) \to 2 K C l (s) + 3 O_{2} (g) & (S) & H C l is the limiting reagent \frac{2}{3} moles of K C l O_{3} decomposed (T) & 11.2 L of gas at STP is liberated (U) & 75 % of excess reagent left \end{matrix}$

Discussion

39.	Given the standard electrode potentials, K+/K = −2.93V, Ag+/Ag = 0.80V, Hg2+/Hg = 0.79V Mg2+/Mg = −2.37 V, Cr3+/Cr = − 0.74V Arrange these metals in their increasing order of reducing power.
Answer» Given the standard electrode potentials, K⁺/K = −2.93V, Ag⁺/Ag = 0.80V, Hg²⁺/Hg = 0.79V Mg²⁺/Mg = −2.37 V, Cr³⁺/Cr = − 0.74V Arrange these metals in their increasing order of reducing power.

39.

Given the standard electrode potentials, K+/K = −2.93V, Ag+/Ag = 0.80V, Hg2+/Hg = 0.79V Mg2+/Mg = −2.37 V, Cr3+/Cr = − 0.74V Arrange these metals in their increasing order of reducing power.

Answer»

Given
the standard electrode potentials,

K⁺/K
= −2.93V, Ag⁺/Ag
= 0.80V,

Hg²⁺/Hg
= 0.79V

Mg²⁺/Mg
= −2.37 V, Cr³⁺/Cr
= − 0.74V

Arrange
these metals in their increasing order of reducing power.

Discussion

40.	how to find effective refractive index in the combination of glass slabs?
Answer» how to find effective refractive index in the combination of glass slabs?

Discussion

41.	In which of the following species, neither octet nor extended octet is observed at central atom?(A) ClF3(C) AlCl3(D) SF6
Answer» In which of the following species, neither octet nor extended octet is observed at central atom? (A) ClF3 (C) AlCl3 (D) SF6

Discussion

42.	If pressure of hydrogen gas is increased by 10 ATM to 1000 ATM keeping hydrogen ion concentration at 1 M. Then voltage of hydrogen half cell
Answer» If pressure of hydrogen gas is increased by 10 ATM to 1000 ATM keeping hydrogen ion concentration at 1 M. Then voltage of hydrogen half cell

Discussion

43.	6. What is the hybridisation of Mn in K_2MnO_4 ?
Answer» 6. What is the hybridisation of Mn in K_2MnO_4 ?

Discussion

44.	21. Cosx + cos2x+cos3x=0
Answer» 21. Cosx + cos2x+cos3x=0

Discussion

45.	The value of Planck's constant is 6.63 × 10−34 js. The velocity of light is 3.0 × 108 ms−1 . Which value is closest to the wavelength in nanometers of a quantum of light with frequencty of 8 × 1015 s−1
Answer» The value of Planck's constant is $6.63 \times 10^{- 34} j s$ . The velocity of light is $3.0 \times 10^{8} m s^{- 1}$ . Which value is closest to the wavelength in nanometers of a quantum of light with frequencty of $8 \times 10^{15} s^{- 1}$

Discussion

46.	12. Why is H_2+Br_2=2HBr a redox reaction?
Answer» 12. Why is H_2+Br_2=2HBr a redox reaction?

Discussion

47.	Which of the following are filled according to the Aufbau's Principle.
Answer» Which of the following are filled according to the Aufbau's Principle.

Discussion

48.	State the reagent used for the following conversion:- Benzene→ Toluen
Answer» State the reagent used for the following conversion:- Benzene→ Toluen

Discussion

49.	QUESTION 2.34 Vapour pressure of water at 293K is 17.535 mm Hg. Calculate the vapour pressure of water at 293K when 25g of glucose is dissolved in 450 g of water.
Answer» QUESTION 2.34 Vapour pressure of water at 293K is 17.535 mm Hg. Calculate the vapour pressure of water at 293K when 25g of glucose is dissolved in 450 g of water.

49.

QUESTION 2.34 Vapour pressure of water at 293K is 17.535 mm Hg. Calculate the vapour pressure of water at 293K when 25g of glucose is dissolved in 450 g of water.

Answer»

QUESTION 2.34

Vapour pressure of water at 293K is 17.535 mm Hg. Calculate the vapour pressure of water at 293K when 25g of glucose is dissolved in 450 g of water.

Discussion

50.	What do you understand by isoelectronic species? Name a species that will be isoelectronic with each of the following atoms or ions. (i) F– (ii) Ar (iii) Mg2+ (iv)Rb+
Answer» What do you understand by isoelectronic species? Name a species that will be isoelectronic with each of the following atoms or ions. (i) $F^{-}$ (ii) Ar (iii) $M g^{2 +}$ (iv) $R b^{+}$

50.

What do you understand by isoelectronic species? Name a species that will be isoelectronic with each of the following atoms or ions. (i) F– (ii) Ar (iii) Mg2+ (iv)Rb+

Answer»

What do you understand by isoelectronic species? Name a species that will be isoelectronic with each of the following atoms or ions.
(i) $F^{-}$

(ii) Ar

(iii) $M g^{2 +}$

(iv) $R b^{+}$

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Write the equations for conversion of ethyl chloride to nitroethane.

The minimum distance between the cations in Zinc blende

8. Explain how does a mixture of equimolar amounts of NH4OH and NH4Cl act as a basic buffer when 1)small amounts of acid 2)small amounts of base is added.

why resonance effect is not found in meta substituted organic compound ?

In the reaction given below, the major organic product formed is

Predict the major product when 2 methylbut-2-ene is converted into following methods: 1.) Acid catalysed hydration 2.) Hydroboration by BH3-THF

30. An element crystallizes in a BCC lattice nearest neighbours and next nearest neighbours of the elements are respectively 1) 8,8 2)8,6 3)6,8 4)6,6

For a mercury-steam-sulphur oxide cycle, the heat rejected in the mercury cycle is given to the steam cycle and the heat rejected in the steam cycle is utilized in the sulphur oxide cycle are 0.4 and 0.3 and the overall efficiency is 0.72 then efficiency of the steam cycle is ________%.33.33

39. Acetylene on reaction with K2Cr2O7+H2SO4→ PRODUCT [O] 1)CH3CHO 2)CH3-CH2-CH3 3)CH3COOH 4)CH3OH

The major product of the following reaction is:CH3CH=CHCO2CH3LiAlH4−−−−→

How many isomers are possible in [Cr(en)2Br2]?

Drive all formula which is made from magnification (m=hi/ho. , m=-v/u. , m=f/f-u. , m=f-v/f)

Why does the conductivity of a solution decrease with dilution?

What is the meaning that gases ionized

3. In CCl4 contain a solution whose 0.52g C10H8 elevation in boiling point is 0.402^°C dissociate in same value of CCl4 elevation is 0.65^°C so find the molecular weight of solute 1)85.53 2)181.51 3)94.38 4)160.62

Using the data provided, calculate the multiple bond energy (kJ mol−1) of a C≡C bond in C2H2. That energy is (take the bond energy of a C−H bond as 350 kJ mol−12C(s) + H2(g)→C2H2(g) ΔH=225 kJ mol−12C(s)→2C(g) ΔH=1410 kJ mol−1H2(g)→2H(g) ΔH=330 kJ mol−1

Calculate the molarity of 11.7% by mass of NaCl in water. The density of the solution is 1.60 g/mL.(Given, atomic mass Na=23 u, Cl=35.5 u)

What is the correct reactivity order of alkyl halides towards ammonolysis ?

For 3s orbital of hydrogen atom, the normalised wave function is Ψ3s=1(81)√3π(1a0)32[27−18ra0+2r2a20]e−r3a0 If distance between the radial nodes is d, the value of d1.5 a0 is (two decimal places)(Take √108=10 )

A metal crystallizes into two cubic phases, face centered cubic (FCC) and body centered cubic (BCC), whose unit cell length are 4.5 ∘A and 3 ∘A, respectively. Calculate the ratio of the densities of the BCC to the FCC lattice.

Match the reactions given in List I with the number of electrons lost or gained in List II Column−IColumn−IIReactionNumber of electrons lost or gained(P)Mn(OH)2+H2O2→MnO2+2H2O(1)8(Q)AlCl3+3K→Al+3KCl(2)2(R)3Fe+4H2O→Fe3O4+4H2(3)3(S)3H2S+2HNO3→3S+2NO+4H2O(4)6

A 4% solution(w/w) of sucrose (M = 342 g mol–1) in water has a freezing point of 271.15 K. Calculate the freezing point of 5% glucose (M = 180 g mol–1) in water. (Given: Freezing point of pure water = 273.15 K)

What is the shape of SF4?

Predict the major product obtained when the given compound undergoes hydrolysis in the presence of an acid.

The correct order of the stoichiometries of AgCl formed when AgNO3 in excess is treated with the complexes : CoCl3.6NH3,CoCl3.5NH3,CoCl3.4NH3 respectively is:

Which of the following will give a pair of enantiomers?

Calculate the temperature at which RMS velocity of oxygen becomes 1.5 times its value at NTP.

82.An organic compound contains C ,H & oxygen. Its elemental analysis gave C, 38.71% & H, 9.67%. The empirical formula of the compound would be

In a solid AB having the NaCl structure, 'A' atoms occupy the corners of the cubic unit cell. If all the face centred atoms along one of the axes are removed, the resultant stoichiometry of the solid is:

The unit cell with crystallographic dimenions

In column chromatography, the solvent in the saturated solution added initially is absorbed by the dry gelatin mixture present in the burette

If the value of n+l is more than 3 and less than 6, what will be the possible number of orbitals

Which of the following diodes is connected in forward biased connections?

How is Bleaching powder prepared? Give its important uses.

A sample of industrial waste water is found to contain 8.2% Na3PO4 and 12% MgSO4 by weight in solution. If % ionisation of Na3PO4 and MgSO4 are 50% and 60% respectively, then its normal boiling point (in °C ) is (2 decimal places). [use Kb(H2O) = 0.50 Kkgmo1−1]:

which of the following statement is incorrect? (A) All elements are homogenous. (B) Compounds always contain two or more different elements (C) A mixture is not always heterogeneous. (D) Air is a heterogeneous mixtur

Calculate the mass of sodium acetate requuired to make 500ml of 0.375 molar aqueous solution.molar mass of sodium acetate is 82.0245gm mol^{-1}.

Given the standard electrode potentials, K+/K = −2.93V, Ag+/Ag = 0.80V, Hg2+/Hg = 0.79V Mg2+/Mg = −2.37 V, Cr3+/Cr = − 0.74V Arrange these metals in their increasing order of reducing power.

how to find effective refractive index in the combination of glass slabs?

In which of the following species, neither octet nor extended octet is observed at central atom?(A) ClF3(C) AlCl3(D) SF6

If pressure of hydrogen gas is increased by 10 ATM to 1000 ATM keeping hydrogen ion concentration at 1 M. Then voltage of hydrogen half cell

6. What is the hybridisation of Mn in K_2MnO_4 ?

21. Cosx + cos2x+cos3x=0

The value of Planck's constant is 6.63 × 10−34 js. The velocity of light is 3.0 × 108 ms−1 . Which value is closest to the wavelength in nanometers of a quantum of light with frequencty of 8 × 1015 s−1

12. Why is H_2+Br_2=2HBr a redox reaction?

Which of the following are filled according to the Aufbau's Principle.

State the reagent used for the following conversion:- Benzene→ Toluen

QUESTION 2.34 Vapour pressure of water at 293K is 17.535 mm Hg. Calculate the vapour pressure of water at 293K when 25g of glucose is dissolved in 450 g of water.

What do you understand by isoelectronic species? Name a species that will be isoelectronic with each of the following atoms or ions. (i) F– (ii) Ar (iii) Mg2+ (iv)Rb+