46295 + Interview Questions in Chemistry

1.	Bond angle maximum among NH3,NH4+,PCl3 , SCl2
Answer» Bond angle maximum among NH_3,NH₄⁺,PCl₃ , SCl2

Discussion

2.	Why ethanol is completely miscible in water while the corresponding alkane can not?
Answer» Why ethanol is completely miscible in water while the corresponding alkane can not?

Discussion

3.	Ratio between fraction of the volume ocuupied by the spheres in a hcp to the ccp is
Answer» Ratio between fraction of the volume ocuupied by the spheres in a hcp to the ccp is

Discussion

4.	Oil contains unsaturated fatty acids which is good fat and ghee contains saturated fatty acids which bad fat. Then why dieticians suggest to consume more ghee and less oil?
Answer» Oil contains unsaturated fatty acids which is good fat and ghee contains saturated fatty acids which bad fat. Then why dieticians suggest to consume more ghee and less oil?

Discussion

5.	Explain in detail about the catalysis
Answer» Explain in detail about the catalysis

Discussion

6.	If nitrogen and hydrogen are at the same temperature T , then is it possible that the Kinetic energies of Nitrogen molecule and hydrogen molecule will be different ? Justify .
Answer» If nitrogen and hydrogen are at the same temperature T , then is it possible that the Kinetic energies of Nitrogen molecule and hydrogen molecule will be different ? Justify .

Discussion

7.	Hydrogen peroxide and water contains 5.93% and 11.2% hydrogen respectively. Show that the data illustrates law of multiple proportions?
Answer» Hydrogen peroxide and water contains 5.93% and 11.2% hydrogen respectively. Show that the data illustrates law of multiple proportions?

Discussion

8.	When H2O2 is added to TiO2 solution acidified with conc. H2SO4, the orange coloured compound formed is
Answer» When $H_{2}$ $O_{2}$ is added to $T i O_{2}$ solution acidified with conc. $H_{2}$ $S O_{4}$ , the orange coloured compound formed is

Discussion

9.	Draw Fischer projections for the following substitution reaction:
Answer» Draw Fischer projections for the following substitution reaction:

Discussion

10.	Which of the following species is not an electrophile?
Answer» Which of the following species is not an electrophile?

Discussion

11.	Can lemon can be used as for massaging on scalp.
Answer» Can lemon can be used as for massaging on scalp.

Discussion

12.	The number of resonance structures for N is___
Answer» The number of resonance structures for N is___

12.

The number of resonance structures for N is___

Answer»

The number of resonance structures for N is___

Discussion

13.	Which of the following carbanions is the most stable?
Answer» Which of the following carbanions is the most stable?

Discussion

14.	The correct order of magnetic moments (spin values in B.M) among is:
Answer» The correct order of magnetic moments (spin values in B.M) among is:

Discussion

15.	The degree of hydrolysis and pH of 0.1 M sodium acetate solution are: Also calculate the concentration of all the ions at equilibrium. Hydrolysis constant of sodium acetate is 5.6 × 10−10.
Answer» The degree of hydrolysis and pH of $0.1 M$ sodium acetate solution are: Also calculate the concentration of all the ions at equilibrium. Hydrolysis constant of sodium acetate is $5.6 \times 10^{- 10}$ .

Discussion

16.	Entropy of the reaction x+ y=xy where reactants side is in gaseous state and product side is in liquid state
Answer» Entropy of the reaction x+ y=xy where reactants side is in gaseous state and product side is in liquid state

Discussion

17.	Will benzaldehyde do not have alpha hydrogen?
Answer» Will benzaldehyde do not have alpha hydrogen?

Discussion

18.	How many alcohols can give white turbidity immediately with HCl+ anhydrous ZnCl2?
Answer» How many alcohols can give white turbidity immediately with $H C l +$ anhydrous $Z n C l_{2}$ ?

Discussion

19.	Is molecular mass , atomic mass , gram molecular mass, gram atomic mass one mole. (Like, is 12amu C one mole particles)
Answer» Is molecular mass , atomic mass , gram molecular mass, gram atomic mass one mole. (Like, is 12amu C one mole particles)

19.

Is molecular mass , atomic mass , gram molecular mass, gram atomic mass one mole. (Like, is 12amu C one mole particles)

Answer»

Is molecular mass , atomic mass , gram molecular mass, gram atomic mass one mole.

(Like, is 12amu C one mole particles)

Discussion

20.	A mixture contains 16g of oxygen, 28 g of nitrogen and 8g of methane. Total pressure of the mixture is 740 mm. What is the partial pressure of nitrogen in mm?
Answer» A mixture contains 16g of oxygen, 28 g of nitrogen and 8g of methane. Total pressure of the mixture is 740 mm. What is the partial pressure of nitrogen in mm?

Discussion

21.	Assuming that the system is at equilibrium, which of the following reactions goes most nearly to 100% completion -
Answer» Assuming that the system is at equilibrium, which of the following reactions goes most nearly to 100% completion -

Discussion

22.	Which of the following contains greatest number of atoms?
Answer» Which of the following contains greatest number of atoms?

Discussion

23.	The systematic name for neopentyl group is?
Answer» The systematic name for neopentyl group is?

Discussion

24.	Groove's process is used for the preparation of:
Answer» Groove's process is used for the preparation of:

Discussion

25.	Which of the following is a tertiary haloalkane?
Answer» Which of the following is a tertiary haloalkane?

Discussion

26.	C(OH)4 is unstable because a carbon atom cannot hold more than one -OH groups but Si(OH)4 is a stable compound because
Answer» $C (O H)_{4}$ is unstable because a carbon atom cannot hold more than one -OH groups but $S i (O H)_{4}$ is a stable compound because

Discussion

27.	The complete hydrolysis of (CH3)2SiCl2 forms-
Answer» The complete hydrolysis of $(C H_{3})_{2} S i C l_{2}$ forms-

Discussion

28.	Assertion: In diffusion, molecules move in a random fashion. Reason: Diffusion can be both uphill and downhill.
Answer» Assertion: In diffusion, molecules move in a random fashion. Reason: Diffusion can be both uphill and downhill.

28.

Assertion: In diffusion, molecules move in a random fashion. Reason: Diffusion can be both uphill and downhill.

Answer»

Assertion: In diffusion, molecules move in a random fashion.

Reason: Diffusion can be both uphill and downhill.

Discussion

29.	A condensation polymer among the following is:
Answer» A condensation polymer among the following is:

Discussion

30.	The spectral series of H− atom gives ¯vmin and ¯vmax depending on the types of transition. Which of the following is/are true?
Answer» The spectral series of $H -$ atom gives ${¯ v}_{min}$ and ${¯ v}_{max}$ depending on the types of transition. Which of the following is/are true?

Discussion

31.	Which of the following is the electron deficient molecule.
Answer» Which of the following is the electron deficient molecule.

Discussion

32.	Which of the following bicarbonates does not exist in solid state?
Answer» Which of the following bicarbonates does not exist in solid state?

Discussion

33.	Which of the following will be stable?
Answer» Which of the following will be stable?

Discussion

34.	The most polarizable ion among the following is:
Answer» The most polarizable ion among the following is:

Discussion

35.	Which of the following is paramagnetic as well as coloured?
Answer» Which of the following is paramagnetic as well as coloured?

Discussion

36.	During the process of blood coagulation, vitamin k helps in
Answer» During the process of blood coagulation, vitamin k helps in

Discussion

37.	White phosphorus P4 has
Answer» White phosphorus $P_{4}$ has

Discussion

38.	At absolute zero, the entropy of a perfect crystal is zero. This is …….. of thermodynamics.
Answer» At absolute zero, the entropy of a perfect crystal is zero. This is …….. of thermodynamics.

Discussion

39.	The odd decomposition of carbon chlorine bond form [UPSEAT 1999]
Answer» The odd decomposition of carbon chlorine bond form [UPSEAT 1999]

39.

The odd decomposition of carbon chlorine bond form [UPSEAT 1999]

Answer»

The odd decomposition of carbon chlorine bond form

[UPSEAT 1999]

Discussion

40.	Hybridisation of singlet carbene is:
Answer» Hybridisation of singlet carbene is:

Discussion

41.	The reaction (CH3)3C-Br+ water -------> t-Butyl alcohol is:
Answer» The reaction $(C H_{3})_{3} C$ -Br+ water ------- $>$ t-Butyl alcohol is:

Discussion

42.	Much of the chemistry of alkyl halide is dominated by their electrophilic behaviour. Identify the Halo methane with maximum value of its physical properties: i)Maximum bond length is possessed by
Answer» Much of the chemistry of alkyl halide is dominated by their electrophilic behaviour. Identify the Halo methane with maximum value of its physical properties: i)Maximum bond length is possessed by

42.

Much of the chemistry of alkyl halide is dominated by their electrophilic behaviour. Identify the Halo methane with maximum value of its physical properties: i)Maximum bond length is possessed by

Answer»

Much of the chemistry of alkyl halide is dominated by their electrophilic behaviour. Identify the Halo methane with maximum value of its physical properties:

i)Maximum bond length is possessed by

Discussion

43.	Chloropicrin is
Answer» Chloropicrin is

Discussion

44.	A mixture has 18 g water and 414 g ethanol. The mole fraction of water in mixture is (assume ideal behaviour of the mixture)
Answer» A mixture has 18 g water and 414 g ethanol. The mole fraction of water in mixture is (assume ideal behaviour of the mixture)

Discussion

45.	The adsorption of hydrogen by metals is called
Answer» The adsorption of hydrogen by metals is called

Discussion

46.	What is the coordination entity formed when excess of aqueous KCN is added to an aqueous solution of copper sulphate? Why is it that no precipitate of copper sulphide is obtained when H2S(g)is passed through this solution?
Answer» What is the coordination entity formed when excess of aqueous KCN is added to an aqueous solution of copper sulphate? Why is it that no precipitate of copper sulphide is obtained when $H_{2} S (g)$ is passed through this solution?

Discussion

47.	The angular momentum of electron in ‘d‘ orbital is equal to :
Answer» The angular momentum of electron in ‘d‘ orbital is equal to :

Discussion

48.	Label the hydrophilic and hydrophobic parts in the following compounds. CH3(CH2)10CH2OSO−3Na+ CH3(CH2)15N+(CH3)3 Br− CH3(CH2)16COO(CH2CH2O)n CH2CH2OH
Answer» Label the hydrophilic and hydrophobic parts in the following compounds. $C H_{3} (C H_{2})_{10} C H_{2} O S O_{3}^{-} N a^{+}$ $C H_{3} (C H_{2})_{15} N^{+} (C H_{3})_{3} B r^{-}$ $C H_{3} (C H_{2})_{16} C O O (C H_{2} C H_{2} O)_{n} C H_{2} C H_{2} O H$

48.

Label the hydrophilic and hydrophobic parts in the following compounds. CH3(CH2)10CH2OSO−3Na+ CH3(CH2)15N+(CH3)3 Br− CH3(CH2)16COO(CH2CH2O)n CH2CH2OH

Answer»

Label the hydrophilic and hydrophobic parts in the following compounds.

$C H_{3} (C H_{2})_{10} C H_{2} O S O_{3}^{-} N a^{+}$

$C H_{3} (C H_{2})_{15} N^{+} (C H_{3})_{3} B r^{-}$

$C H_{3} (C H_{2})_{16} C O O (C H_{2} C H_{2} O)_{n} C H_{2} C H_{2} O H$

Discussion

49.	An element crystallizes into a structure which may be described by a cubic type of unit cell having one atom on each corner of the cube and two atoms on one of its body diagonals. If the volume of this unit cell is 24 × 10-24 cm3 and density of element is 7.2 g cm-3, calculate the number of atoms present in 200 g of element.
Answer» An element crystallizes into a structure which may be described by a cubic type of unit cell having one atom on each corner of the cube and two atoms on one of its body diagonals. If the volume of this unit cell is 24 × 10^-24 cm³ and density of element is 7.2 g cm^-3, calculate the number of atoms present in 200 g of element.

Discussion

50.	Which one of the following mixture is considered as an acidic buffer solution ?
Answer» Which one of the following mixture is considered as an acidic buffer solution ?

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Bond angle maximum among NH​​​​​3,NH​​​​​4+,PCl​​​​3 , SCl2

Why ethanol is completely miscible in water while the corresponding alkane can not?

Ratio between fraction of the volume ocuupied by the spheres in a hcp to the ccp is

Oil contains unsaturated fatty acids which is good fat and ghee contains saturated fatty acids which bad fat. Then why dieticians suggest to consume more ghee and less oil?

Explain in detail about the catalysis

If nitrogen and hydrogen are at the same temperature T , then is it possible that the Kinetic energies of Nitrogen molecule and hydrogen molecule will be different ? Justify .

Hydrogen peroxide and water contains 5.93% and 11.2% hydrogen respectively. Show that the data illustrates law of multiple proportions?

When H2O2 is added to TiO2 solution acidified with conc. H2SO4, the orange coloured compound formed is

Draw Fischer projections for the following substitution reaction:

Which of the following species is not an electrophile?

Can lemon can be used as for massaging on scalp.

The number of resonance structures for N is___

Which of the following carbanions is the most stable?

The correct order of magnetic moments (spin values in B.M) among is:

The degree of hydrolysis and pH of 0.1 M sodium acetate solution are: Also calculate the concentration of all the ions at equilibrium. Hydrolysis constant of sodium acetate is 5.6 × 10−10.

Entropy of the reaction x+ y=xy where reactants side is in gaseous state and product side is in liquid state

Will benzaldehyde do not have alpha hydrogen?

How many alcohols can give white turbidity immediately with HCl+ anhydrous ZnCl2?

Is molecular mass , atomic mass , gram molecular mass, gram atomic mass one mole. (Like, is 12amu C one mole particles)

A mixture contains 16g of oxygen, 28 g of nitrogen and 8g of methane. Total pressure of the mixture is 740 mm. What is the partial pressure of nitrogen in mm?

Assuming that the system is at equilibrium, which of the following reactions goes most nearly to 100% completion -

Which of the following contains greatest number of atoms?

The systematic name for neopentyl group is?

Groove's process is used for the preparation of:

Which of the following is a tertiary haloalkane?

C(OH)4 is unstable because a carbon atom cannot hold more than one -OH groups but Si(OH)4 is a stable compound because

The complete hydrolysis of (CH3)2SiCl2 forms-

Assertion: In diffusion, molecules move in a random fashion. Reason: Diffusion can be both uphill and downhill.

A condensation polymer among the following is:

The spectral series of H− atom gives ¯vmin and ¯vmax depending on the types of transition. Which of the following is/are true?

Which of the following is the electron deficient molecule.

Which of the following bicarbonates does not exist in solid state?

Which of the following will be stable?

The most polarizable ion among the following is:

Which of the following is paramagnetic as well as coloured?

During the process of blood coagulation, vitamin k helps in

White phosphorus P4 has

At absolute zero, the entropy of a perfect crystal is zero. This is …….. of thermodynamics.

The odd decomposition of carbon chlorine bond form [UPSEAT 1999]

Hybridisation of singlet carbene is:

The reaction (CH3)3C-Br+ water -------&gt; t-Butyl alcohol is:

Much of the chemistry of alkyl halide is dominated by their electrophilic behaviour. Identify the Halo methane with maximum value of its physical properties: i)Maximum bond length is possessed by

Chloropicrin is

A mixture has 18 g water and 414 g ethanol. The mole fraction of water in mixture is (assume ideal behaviour of the mixture)

The adsorption of hydrogen by metals is called

What is the coordination entity formed when excess of aqueous KCN is added to an aqueous solution of copper sulphate? Why is it that no precipitate of copper sulphide is obtained when H2S(g)is passed through this solution?

The angular momentum of electron in ‘d‘ orbital is equal to :

Label the hydrophilic and hydrophobic parts in the following compounds. CH3(CH2)10CH2OSO−3Na+ CH3(CH2)15N+(CH3)3 Br− CH3(CH2)16COO(CH2CH2O)n CH2CH2OH

Which one of the following mixture is considered as an acidic buffer solution ?

Bond angle maximum among NH3,NH4+,PCl3 , SCl2

The reaction (CH3)3C-Br+ water -------> t-Butyl alcohol is: