46295 + Interview Questions in Chemistry

1.	Do complexes having strong field ligands reflect long wavelengths?
Answer» Do complexes having strong field ligands reflect long wavelengths?

Discussion

2.	Q 24/90 All of the given compounds have zero dipole moment except BF3,BeF2,co2,nh,
Answer» Q 24/90 All of the given compounds have zero dipole moment except BF3,BeF2,co2,nh,

Discussion

3.	which is more stable para hydrogen or ortho hydrogen and why
Answer» which is more stable para hydrogen or ortho hydrogen and why

Discussion

4.	Gauche Conformation of butane is:
Answer» Gauche Conformation of butane is:

Discussion

5.	5. Calculate the distance between 111 planes in a crystal of calcium
Answer» 5. Calculate the distance between 111 planes in a crystal of calcium

Discussion

6.	which is more stable KFe[Cr(CN)6] or KCr[Fe(CN)6] ? What is the reason?Give me step by step explanation how to find the oxidation states in these complexes.
Answer» which is more stable KFe[Cr(CN)6] or KCr[Fe(CN)6] ? What is the reason? Give me step by step explanation how to find the oxidation states in these complexes.

Discussion

7.	Cryolite is the chief ore of
Answer» Cryolite is the chief ore of

Discussion

8.	78.I n a SHM on horizontal line when the displacement of the particle is half of the amplitude then find the fraction of its total energy which is purely kinetic.
Answer» 78.I n a SHM on horizontal line when the displacement of the particle is half of the amplitude then find the fraction of its total energy which is purely kinetic.

Discussion

9.	The real gas equation at high pressure will be:
Answer» The real gas equation at high pressure will be:

Discussion

10.	Which of the following is active species in sulphonation of benzene?
Answer» Which of the following is active species in sulphonation of benzene?

Discussion

11.	Which of the following graphs correctly represents the variation of particle momentum with associated de Broglie wavelength?
Answer» Which of the following graphs correctly represents the variation of particle momentum with associated de Broglie wavelength?

Discussion

12.	10 g of NaOH is mixed with 36 g of H2O. What is the mole fraction of NaOH in solution?
Answer» 10 g of NaOH is mixed with 36 g of H2O. What is the mole fraction of NaOH in solution?

Discussion

13.	give the IUPAC name and symbol of the element for atomic number 10
Answer» give the IUPAC name and symbol of the element for atomic number 10

Discussion

14.	find period of the function f(x) =sinx/x
Answer» find period of the function f(x) =sinx/x

Discussion

15.	13. in which of the following molecule stabilizes by removal of electron 1)C_2 2)O_2 3)N_2 4)H_2
Answer» 13. in which of the following molecule stabilizes by removal of electron 1)C_2 2)O_2 3)N_2 4)H_2

Discussion

16.	Given that E0Cl2/Cl−=1.35 V and Ksp(AgCl)=10−10 at 25oC.E0 corresponding to the electrode reaction is 12Cl2(g)+Ag+(aq)+e−→AgCl(s) is
Answer» Given that $E_{C l_{2} / C l^{-}}^{0} = 1.35 V$ and $K_{s p} (A g C l) = 10^{- 10}$ at $25^{o} C$ . $E^{0}$ corresponding to the electrode reaction is $\frac{1}{2} C l_{2} (g) + A g^{+} (a q) + e^{-} \to A g C l (s)$ is

Discussion

17.	The compressibility factor for nitrogen at 330 K and 800 atm is 1.90 and at 570 K and 200 atm is 1.10. A certain mass of N2 occupies a volume of 1 dm3 at 330 K and 800 atm. Calculate the volume occupied by same quantity of N2 gas at 750 K and 200 atm.
Answer» The compressibility factor for nitrogen at 330 K and 800 atm is 1.90 and at 570 K and 200 atm is 1.10. A certain mass of $N_{2}$ occupies a volume of 1 $d m^{3}$ at 330 K and 800 atm. Calculate the volume occupied by same quantity of $N_{2}$ gas at 750 K and 200 atm.

Discussion

18.	Which of the following chemical reaction is associated with the Deacon process?
Answer» Which of the following chemical reaction is associated with the Deacon process?

Discussion

19.	Electrochemical series is a series of elements arranged in increasing order of their reduction potential and E0H+/H2=0. The metals above H2 have – ve reduction potential, they are more reactive than hydrogen whereas metals below hydrogen are less reactive than H2. Reduction potential of metal depends upon (i) sublimation energy (ii) ionization energy and (iii) hydration energy of ions. Which of the following is best reducing agent?
Answer» Electrochemical series is a series of elements arranged in increasing order of their reduction potential and $E_{H^{+} / H_{2}}^{0} = 0$ . The metals above $H_{2}$ have – ve reduction potential, they are more reactive than hydrogen whereas metals below hydrogen are less reactive than $H_{2}$ . Reduction potential of metal depends upon (i) sublimation energy (ii) ionization energy and (iii) hydration energy of ions. Which of the following is best reducing agent?

19.

Electrochemical series is a series of elements arranged in increasing order of their reduction potential and E0H+/H2=0. The metals above H2 have – ve reduction potential, they are more reactive than hydrogen whereas metals below hydrogen are less reactive than H2. Reduction potential of metal depends upon (i) sublimation energy (ii) ionization energy and (iii) hydration energy of ions. Which of the following is best reducing agent?

Answer»

Electrochemical series is a series of elements arranged in increasing order of their reduction potential and $E_{H^{+} / H_{2}}^{0} = 0$ . The metals above $H_{2}$ have – ve reduction potential, they are more reactive than hydrogen whereas metals below hydrogen are less reactive than $H_{2}$ . Reduction potential of metal depends upon
(i) sublimation energy (ii) ionization energy and (iii) hydration energy of ions.

Which of the following is best reducing agent?

Discussion

20.	Give the equation of Sodium ethanoate is heated with soda lime.
Answer» Give the equation of Sodium ethanoate is heated with soda lime.

Discussion

21.	A sample of water gas has a composition by volume of 50% H2, 45% CO and 5% CO2. Calculate the volume in litres at STP at which the water gas on treatment with excess of steam will produce 5 L of H2. The equation for the reaction is: CO(g)+H2O(g)→CO2(g)+H2(g)
Answer» A sample of water gas has a composition by volume of 50% $H_{2}$ , 45% $C O$ and 5% $C O_{2}$ . Calculate the volume in litres at STP at which the water gas on treatment with excess of steam will produce 5 L of $H_{2}$ . The equation for the reaction is: $C O_{(g)} + H_{2} O_{(g)} \to C O_{2 (g)} + H_{2 (g)}$

Discussion

22.	Considering the elements F,Cl,O and S, the correct order of their electron affinity values is:
Answer» Considering the elements $F, C l, O a n d S,$ the correct order of their electron affinity values is:

Discussion

23.	Why hyperconjugation is known as no bond resonance?
Answer» Why hyperconjugation is known as no bond resonance?

Discussion

24.	The alkane that yields two isomeric monobromo derivatives is (a) neopentane (b) ethane (c) methane (d) propane
Answer» The alkane that yields two isomeric monobromo derivatives is (a) neopentane (b) ethane (c) methane (d) propane

Discussion

25.	When a strong acid and a strong base are mixed, the heat released is maximum in the case of
Answer» When a strong acid and a strong base are mixed, the heat released is maximum in the case of

Discussion

26.	In the following which bond will be responsible for maximun value of hydrogen bond
Answer» In the following which bond will be responsible for maximun value of hydrogen bond

Discussion

27.	22.7 mL of a N10Na2CO3 solution neutralizes 10.2 mL of dilute H2SO4. Find the volume of water to be added to 400 mL of the same H2SO4 to make its concentration exactly N10.
Answer» $22.7 mL$ of a $\frac{N}{10} N a_{2} C O_{3}$ solution neutralizes $10.2 mL$ of dilute $H_{2} S O_{4}$ . Find the volume of water to be added to $400 mL$ of the same $H_{2} S O_{4}$ to make its concentration exactly $\frac{N}{10}$ .

Discussion

28.	For the half-cell: At pH=2, electrode potential is:
Answer» For the half-cell: At $p H = 2$ , electrode potential is:

Discussion

29.	Question 4 (c)Draw the structure of the compound Butanone.
Answer» Question 4 (c) Draw the structure of the compound Butanone.

Discussion

30.	Explain with structure what are the number of geometric and stereoisosmers in [MABXY] type complex?
Answer» Explain with structure what are the number of geometric and stereoisosmers in [MABXY] type complex?

Discussion

31.	37 An organic compound A molecular formula C8H16O2 on hydrolysis with dilute sulphuric acid gives a carboxylic acid B and an alcohol C .oxidation of C with chromic aci3 gives B . C on dehydration gives but -1-ene.identify A, B,C with arrowhead equations of the reactions.
Answer» 37 An organic compound A molecular formula C8H16O2 on hydrolysis with dilute sulphuric acid gives a carboxylic acid B and an alcohol C .oxidation of C with chromic aci3 gives B . C on dehydration gives but -1-ene.identify A, B,C with arrowhead equations of the reactions.

Discussion

32.	Is benzoquinone anti aromatic
Answer» Is benzoquinone anti aromatic

Discussion

33.	Upon heating with Cu2S, the reagents that give copper metal is/are
Answer» Upon heating with $C u_{2} S$ , the reagents that give copper metal is/are

Discussion

34.	Fourier transform of the Gaussian pulse f(t)=e−z2t2 is
Answer» Fourier transform of the Gaussian pulse $f (t) = e^{- z^{2} t^{2}}$ is

Discussion

35.	19. Osmotic pressure of a mono-protic acid in0.1 M aq. solution at temperature TK is 0.2 RT. pHof the solution will be(1 1(2) 2(3) 4(4) 3i thA colvent molecules move
Answer» 19. Osmotic pressure of a mono-protic acid in0.1 M aq. solution at temperature TK is 0.2 RT. pHof the solution will be(1 1(2) 2(3) 4(4) 3i thA colvent molecules move

Discussion

36.	The E∘ for Cu2+/Cu+ ; Cu+/Cu,Cu2+/Cu are 0.15V, 0.50 V and 0.325 V respectively. The redox cell showing redox reaction 2Cu+→Cu2++Cu is made. The E∘ of this cell reaction and ΔG∘ may be:
Answer» The $E^{\circ}$ for $C u^{2 +} / C u^{+}$ ; $C u^{+} / C u$ , $C u^{2 +} / C u$ are 0.15V, 0.50 V and 0.325 V respectively. The redox cell showing redox reaction $2 C u^{+} \to C u^{2 +} + C u$ is made. The $E^{\circ}$ of this cell reaction and $Δ G^{\circ}$ may be:

Discussion

37.	In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct answer out of the following choices. (a) Assertion and reason both are correct statements and reason explains the assertion. (b) Both assertion and reason are wrong statements. (c) Assertion is correct statement and reason is wrong statement. (d) Assertion is wrong statement and reason is correct statement. (e) Assertion and reason both are correct statements but reason does not explain assertion. Assertion (A) All naturally occurring α−aminoacids except glycine are optically active. Reason (R) Most naturally occurring amino acids have L-configuration.
Answer» In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct answer out of the following choices. (a) Assertion and reason both are correct statements and reason explains the assertion. (b) Both assertion and reason are wrong statements. (c) Assertion is correct statement and reason is wrong statement. (d) Assertion is wrong statement and reason is correct statement. (e) Assertion and reason both are correct statements but reason does not explain assertion. Assertion (A) All naturally occurring $α -$ aminoacids except glycine are optically active. Reason (R) Most naturally occurring amino acids have L-configuration.

Discussion

38.	Discovery of nylon is associated with
Answer» Discovery of nylon is associated with

Discussion

39.	Which gives more than one amides on treatment with NH2OH followed by PCl5?
Answer» Which gives more than one amides on treatment with $N H_{2} O H$ followed by $P C l_{5}$ ?

Discussion

40.	The correct order of boiling point of K,Ca,Sc is:
Answer» The correct order of boiling point of $K, C a, S c$ is:

Discussion

41.	which is most reactive nucleophile in polar protic solventa F-b Cl-c Br-d I-
Answer» which is most reactive nucleophile in polar protic solvent a F- b Cl- c Br- d I-

Discussion

42.	Consultthe table of standard electrode potentials and suggest threesubstances that can oxidise ferrous ionsunder suitable conditions.
Answer» Consult the table of standard electrode potentials and suggest three substances that can oxidise ferrous ions under suitable conditions.

Discussion

43.	Two containers A and B have the same volume. Container 'A' contains 5 mole of oxygen gas. Container 'B' contains 3 moles of He gas and 2 mole of CH4 gas. Both the containers are separately kept in vaccum at the same temperature. Both the containers have very small orifices of the same area through which the gases leak out. The rate of diffusion of O2 is how many times the rate of diffusion of He and CH4 mixture.
Answer» Two containers A and B have the same volume. Container 'A' contains 5 mole of oxygen gas. Container 'B' contains 3 moles of He gas and 2 mole of $C H_{4}$ gas. Both the containers are separately kept in vaccum at the same temperature. Both the containers have very small orifices of the same area through which the gases leak out. The rate of diffusion of $O_{2}$ is how many times the rate of diffusion of He and $C H_{4}$ mixture.

43.

Two containers A and B have the same volume. Container 'A' contains 5 mole of oxygen gas. Container 'B' contains 3 moles of He gas and 2 mole of CH4 gas. Both the containers are separately kept in vaccum at the same temperature. Both the containers have very small orifices of the same area through which the gases leak out. The rate of diffusion of O2 is how many times the rate of diffusion of He and CH4 mixture.

Answer»

Two containers A and B have the same volume. Container 'A' contains 5 mole of oxygen gas. Container 'B' contains 3 moles of He gas and 2 mole of $C H_{4}$ gas. Both the containers are separately kept in vaccum at the same temperature. Both the containers have very small orifices of the same area through which the gases leak out. The rate of diffusion of $O_{2}$ is how many times the rate of diffusion of He and $C H_{4}$ mixture.

Discussion

44.	62 Which of the following molecules has the maximum number of A-X bonds of identical length, where A is the central atom and X is the surrounding atom: a)SF6 b)IF7 c)PF5 d)ClO4
Answer» 62 Which of the following molecules has the maximum number of A-X bonds of identical length, where A is the central atom and X is the surrounding atom: a)SF6 b)IF7 c)PF5 d)ClO4

Discussion

45.	29 What is the increase in entropy when 11.2 L of O2 are mixed with 11.2 L of H2 at STP? (1) 0.576 J/K (2) 5.76 J/K (3) 7.56 J/K (4) 2.76 J/K
Answer» 29 What is the increase in entropy when 11.2 L of O2 are mixed with 11.2 L of H2 at STP? (1) 0.576 J/K (2) 5.76 J/K (3) 7.56 J/K (4) 2.76 J/K

Discussion

46.	If you keep an iron piece in solid state CuSO4 crystals , does it get any reaction ? Guess the reason What are the preventive methods do you take for rusting iron material If n=3 ,mention the orbitals present in the shell and write maximum number of electrons in the shell A person is unable to see distant objects , show the defect of vision of the person with the help of ray diagram
Answer» If you keep an iron piece in solid state CuSO4 crystals , does it get any reaction ? Guess the reason What are the preventive methods do you take for rusting iron material If n=3 ,mention the orbitals present in the shell and write maximum number of electrons in the shell A person is unable to see distant objects , show the defect of vision of the person with the help of ray diagram

46.

If you keep an iron piece in solid state CuSO4 crystals , does it get any reaction ? Guess the reason What are the preventive methods do you take for rusting iron material If n=3 ,mention the orbitals present in the shell and write maximum number of electrons in the shell A person is unable to see distant objects , show the defect of vision of the person with the help of ray diagram

Answer»

If you keep an iron piece in solid state CuSO4 crystals , does it get any reaction ? Guess the reason

What are the preventive methods do you take for rusting iron material

If n=3 ,mention the orbitals present in the shell and write maximum number of electrons in the shell

A person is unable to see distant objects , show the defect of vision of the person with the help of ray diagram

Discussion

47.	An fcc lattice has lattice parameter a= 400 pm. Calculate the molar volume of the lattice includingall the empty space(4) 9.6 mL (3) 8.6 mL(2) 96 mL(1) 10.8 mL
Answer» An fcc lattice has lattice parameter a= 400 pm. Calculate the molar volume of the lattice includingall the empty space(4) 9.6 mL (3) 8.6 mL(2) 96 mL(1) 10.8 mL

Discussion

48.	The hybridization of C atoms in diamond graphite and acetylene respectively are –
Answer» The hybridization of C atoms in diamond graphite and acetylene respectively are –

Discussion

49.	18.Number of electrons involved in the electrodeposition of 63.5 gm. of Cu from a solution of CuSO4 is (a) 6.022 × 10 23 (b) 3.011 × 10 23 (c) 12.044 × 10 23 (d) 6.022 × 10 22
Answer» 18.Number of electrons involved in the electrodeposition of 63.5 gm. of Cu from a solution of CuSO4 is (a) 6.022 × 10 23 (b) 3.011 × 10 23 (c) 12.044 × 10 23 (d) 6.022 × 10 22

Discussion

50.	The conductivity of 0.04 M KCl solution is 0.248 × 10–2 S cm–1. If the resistance of this solution is 600 Ω, then molar conductivity is
Answer» The conductivity of 0.04 M KCl solution is 0.248 × 10–2 S cm–1. If the resistance of this solution is 600 Ω, then molar conductivity is

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Do complexes having strong field ligands reflect long wavelengths?

Q 24/90 All of the given compounds have zero dipole moment except BF3,BeF2,co2,nh,

which is more stable para hydrogen or ortho hydrogen and why

Gauche Conformation of butane is:

5. Calculate the distance between 111 planes in a crystal of calcium

which is more stable KFe[Cr(CN)6] or KCr[Fe(CN)6] ? What is the reason?Give me step by step explanation how to find the oxidation states in these complexes.

Cryolite is the chief ore of

78.I n a SHM on horizontal line when the displacement of the particle is half of the amplitude then find the fraction of its total energy which is purely kinetic.

The real gas equation at high pressure will be:

Which of the following is active species in sulphonation of benzene?

Which of the following graphs correctly represents the variation of particle momentum with associated de Broglie wavelength?

10 g of NaOH is mixed with 36 g of H2O. What is the mole fraction of NaOH in solution?

give the IUPAC name and symbol of the element for atomic number 10

find period of the function f(x) =sinx/x

13. in which of the following molecule stabilizes by removal of electron 1)C_2 2)O_2 3)N_2 4)H_2

Given that E0Cl2/Cl−=1.35 V and Ksp(AgCl)=10−10 at 25oC.E0 corresponding to the electrode reaction is 12Cl2(g)+Ag+(aq)+e−→AgCl(s) is

The compressibility factor for nitrogen at 330 K and 800 atm is 1.90 and at 570 K and 200 atm is 1.10. A certain mass of N2 occupies a volume of 1 dm3 at 330 K and 800 atm. Calculate the volume occupied by same quantity of N2 gas at 750 K and 200 atm.

Which of the following chemical reaction is associated with the Deacon process?

Give the equation of Sodium ethanoate is heated with soda lime.

A sample of water gas has a composition by volume of 50% H2, 45% CO and 5% CO2. Calculate the volume in litres at STP at which the water gas on treatment with excess of steam will produce 5 L of H2. The equation for the reaction is: CO(g)+H2O(g)→CO2(g)+H2(g)

Considering the elements F,Cl,O and S, the correct order of their electron affinity values is:

Why hyperconjugation is known as no bond resonance?

The alkane that yields two isomeric monobromo derivatives is (a) neopentane (b) ethane (c) methane (d) propane

When a strong acid and a strong base are mixed, the heat released is maximum in the case of

In the following which bond will be responsible for maximun value of hydrogen bond

22.7 mL of a N10Na2CO3 solution neutralizes 10.2 mL of dilute H2SO4. Find the volume of water to be added to 400 mL of the same H2SO4 to make its concentration exactly N10.

For the half-cell: At pH=2, electrode potential is:

Question 4 (c)Draw the structure of the compound Butanone.

Explain with structure what are the number of geometric and stereoisosmers in [MABXY] type complex?

37 An organic compound A molecular formula C8H16O2 on hydrolysis with dilute sulphuric acid gives a carboxylic acid B and an alcohol C .oxidation of C with chromic aci3 gives B . C on dehydration gives but -1-ene.identify A, B,C with arrowhead equations of the reactions.

Is benzoquinone anti aromatic

Upon heating with Cu2S, the reagents that give copper metal is/are

Fourier transform of the Gaussian pulse f(t)=e−z2t2 is

19. Osmotic pressure of a mono-protic acid in0.1 M aq. solution at temperature TK is 0.2 RT. pHof the solution will be(1 1(2) 2(3) 4(4) 3i thA colvent molecules move

The E∘ for Cu2+/Cu+ ; Cu+/Cu,Cu2+/Cu are 0.15V, 0.50 V and 0.325 V respectively. The redox cell showing redox reaction 2Cu+→Cu2++Cu is made. The E∘ of this cell reaction and ΔG∘ may be:

Discovery of nylon is associated with

Which gives more than one amides on treatment with NH2OH followed by PCl5?

The correct order of boiling point of K,Ca,Sc is:

which is most reactive nucleophile in polar protic solventa F-b Cl-c Br-d I-

Consultthe table of standard electrode potentials and suggest threesubstances that can oxidise ferrous ionsunder suitable conditions.

62 Which of the following molecules has the maximum number of A-X bonds of identical length, where A is the central atom and X is the surrounding atom: a)SF6 b)IF7 c)PF5 d)ClO4

29 What is the increase in entropy when 11.2 L of O2 are mixed with 11.2 L of H2 at STP? (1) 0.576 J/K (2) 5.76 J/K (3) 7.56 J/K (4) 2.76 J/K

An fcc lattice has lattice parameter a= 400 pm. Calculate the molar volume of the lattice includingall the empty space(4) 9.6 mL (3) 8.6 mL(2) 96 mL(1) 10.8 mL

The hybridization of C atoms in diamond graphite and acetylene respectively are –

18.Number of electrons involved in the electrodeposition of 63.5 gm. of Cu from a solution of CuSO4 is (a) 6.022 × 10 23 (b) 3.011 × 10 23 (c) 12.044 × 10 23 (d) 6.022 × 10 22

The conductivity of 0.04 M KCl solution is 0.248 × 10–2 S cm–1. If the resistance of this solution is 600 Ω, then molar conductivity is