10223 + Interview Questions in Chemistry Page 4 InterviewSolution

151.	1Q-How solubility of gases in liquids increases on decreasing the temperature? 2Q- How solubility of gases in liquids increases on increasing pressure?
Answer» 1Q-How solubility of gases in liquids increases on decreasing the temperature? 2Q- How solubility of gases in liquids increases on increasing pressure?

Discussion

152.	The density d of nuclear matter varies with nucleon number A as
Answer» The density d of nuclear matter varies with nucleon number A as

Discussion

153.	What is the chemical name of hydrogen peroxide
Answer» What is the chemical name of hydrogen peroxide

Discussion

154.	List down the postulates of Dalton's atomic theory.
Answer» List down the postulates of Dalton's atomic theory.

Discussion

155.	Which of the following affect evaporation?
Answer» Which of the following affect evaporation?

Discussion

156.	Question 5 Which of the following would weigh the highest? (a) 0.2 mole of sucrose (C12H22O11) (b) 2 moles of CO2 (c) 2 moles of CaCO3 (d) 10 moles of H2O
Answer» Question 5 Which of the following would weigh the highest? (a) 0.2 mole of sucrose $(C_{12} H_{22} O_{11})$ (b) 2 moles of $C O_{2}$ (c) 2 moles of $C a C O_{3}$ (d) 10 moles of $H_{2} O$

Discussion

157.	An excess of AgNO3 is added to dichlorotetraaquachromium(lll)Chloride. The number of moles of AgCl precipitated would be: a) 0.01 b) 0.001 c) 0.002 d) 0.003
Answer» An excess of AgNO3 is added to dichlorotetraaquachromium(lll)Chloride. The number of moles of AgCl precipitated would be: a) 0.01 b) 0.001 c) 0.002 d) 0.003

Discussion

158.	Benzylidene acetone is the product of mixed condensation between benzaldehyde and acetone. What is its structure?
Answer» Benzylidene acetone is the product of mixed condensation between benzaldehyde and acetone. What is its structure?

Discussion

159.	When a gas jar containing air is inverted over a gas jar containing bromine vapour, the red-brown bromine vapour diffuse into air. Explain how bromine vapour diffuse into air.
Answer» When a gas jar containing air is inverted over a gas jar containing bromine vapour, the red-brown bromine vapour diffuse into air. Explain how bromine vapour diffuse into air.

Discussion

160.	Does non polar covalent bond forms only between atoms of same element?
Answer» Does non polar covalent bond forms only between atoms of same element?

Discussion

161.	Describe Bohr’s model of the atom.
Answer» Describe Bohr’s model of the atom.

Discussion

162.	Which of the following best describes a micelle?
Answer» Which of the following best describes a micelle?

Discussion

163.	Pure water can be separated from inky water by simple distillation.This is because
Answer» Pure water can be separated from inky water by simple distillation.This is because

Discussion

164.	Can we reverse the following change? If yes, suggest the name of the method.(a) Water into water vapour(b) Water vapour into water(c) Ice into water(d) Curd into milk.
Answer» Can we reverse the following change? If yes, suggest the name of the method. (a) Water into water vapour (b) Water vapour into water (c) Ice into water (d) Curd into milk.

Discussion

165.	Which of the following is the metallic element in group-15?
Answer» Which of the following is the metallic element in group- $15$ ?

Discussion

166.	Why ionic radii of Cu2+ is less than Zn2+,Although atomic radius decreases across a period?
Answer» Why ionic radii of Cu2+ is less than Zn2+, Although atomic radius decreases across a period?

Discussion

167.	Why is atom unbreakable
Answer» Why is atom unbreakable

Discussion

168.	Identify the product formed in the following reaction: 2NaOH(aq) + CuSO4(aq) → Na2SO4(aq) + ?
Answer» Identify the product formed in the following reaction: $2 NaOH (aq) + {CuSO}_{4} (aq) \to {Na}_{2} {SO}_{4} (aq) + ?$

Discussion

169.	What is relative atomic mass ?
Answer» What is relative atomic mass ?

Discussion

170.	Which of these is a colourless, flammable liquid used as a solvent?
Answer» Which of these is a colourless, flammable liquid used as a solvent?

Discussion

171.	If three liquids of densities d, 2d, 3d are mixed withequal proportion of mass, then relative density ofmixture is3511d(1)718d(2)1113d(3)23d(4)18kash Tower, 8, Pusa Road. New Delhi-110005 Ph. 011-47623456
Answer» If three liquids of densities d, 2d, 3d are mixed withequal proportion of mass, then relative density ofmixture is3511d(1)718d(2)1113d(3)23d(4)18kash Tower, 8, Pusa Road. New Delhi-110005 Ph. 011-47623456

Discussion

172.	Anion & Cation
Answer» Anion & Cation

Discussion

173.	The property of virtue of which metals can be drawn into wire is known as:
Answer» The property of virtue of which metals can be drawn into wire is known as:

Discussion

174.	Name two substances which expand and contract on heating.
Answer» Name two substances which expand and contract on heating.

Discussion

175.	54 Calculate volume of 5 gram of acetylene at 50 degree Celsius and 740 mm pressure.
Answer» 54 Calculate volume of 5 gram of acetylene at 50 degree Celsius and 740 mm pressure.

Discussion

176.	Name the gas evolved when potassium nitrate crystals are heated with sulphuric acid.
Answer» Name the gas evolved when potassium nitrate crystals are heated with sulphuric acid.

Discussion

177.	A baloon is filled with hydrogen at room temperature.It will burst if pressure exceeds 0.2 bar.If at1 bar pressure the gas occupies 2.27 l volume .Upto what volume can the baloon be expanded?
Answer» A baloon is filled with hydrogen at room temperature.It will burst if pressure exceeds 0.2 bar.If at1 bar pressure the gas occupies 2.27 l volume .Upto what volume can the baloon be expanded?

Discussion

178.	The dissociation constant of n butyric acid is 1.6 × 10-5 and the molar conductivity at infinite dilution us 380 ×10-4 Sm2mol-1. The specific conductance of the .01 M acid solution is 1) 1.52 × 10-5 Sm-1 2)1.52 × 10-2 Sm-1 3) 1.52 × 10-3 Sm-1 4) none
Answer» The dissociation constant of n butyric acid is 1.6 × 10-5 and the molar conductivity at infinite dilution us 380 ×10-4 Sm2mol-1. The specific conductance of the .01 M acid solution is 1) 1.52 × 10-5 Sm-1 2)1.52 × 10-2 Sm-1 3) 1.52 × 10-3 Sm-1 4) none

Discussion

179.	Which of the following is a natural polymer?
Answer» Which of the following is a natural polymer?

Discussion

180.	Which of the following are in accordance with Dalton’s atomic theory?
Answer» Which of the following are in accordance with Dalton’s atomic theory?

Discussion

181.	Oxygen is industrially prepared by which process ?
Answer» Oxygen is industrially prepared by which process ?

Discussion

182.	How can we prove that the electrons carry negative charge?
Answer» How can we prove that the electrons carry negative charge?

Discussion

183.	What is the property of buckminsterfullerene?
Answer» What is the property of buckminsterfullerene?

Discussion

184.	Why do same elements like Hydrogen , oxygen have different oxidation number with different types of element ?
Answer» Why do same elements like Hydrogen , oxygen have different oxidation number with different types of element ?

Discussion

185.	Why H2O has high melting and boiling point then other member of same group
Answer» Why H2O has high melting and boiling point then other member of same group

Discussion

186.	At which of the following angles, the number of α−particles scattering will be minimum when it is targeted at an atom?
Answer» At which of the following angles, the number of $α -$ particles scattering will be minimum when it is targeted at an atom?

Discussion

187.	Argon has atomic number of 18 and mass number of 40. Calcium has atomic 20 and mass number 40. Calcium and argon are examples of
Answer» Argon has atomic number of 18 and mass number of 40. Calcium has atomic 20 and mass number 40. Calcium and argon are examples of

Discussion

188.	Which of the following is the correct atomic structure of sodium metal?
Answer» Which of the following is the correct atomic structure of sodium metal?

Discussion

189.	The technique of sublimation is used to separate a mixture of
Answer» The technique of sublimation is used to separate a mixture of

Discussion

190.	The pressure of 2 L of O2 gas is doubled when its temperature is increased from 300 K to 600 K. Find the final volume of the gas.
Answer» The pressure of $2 L$ of $O_{2}$ gas is doubled when its temperature is increased from 300 K to 600 K. Find the final volume of the gas.

Discussion

191.	Which of the following molecule has the highest bond length ?(1) C–C(2) N–N(3) O–O(4) F–F
Answer» Which of the following molecule has the highest bond length ? (1) C–C (2) N–N (3) O–O (4) F–F

Discussion

192.	Difference Between boiling and evaporation.
Answer» Difference Between boiling and evaporation.

Discussion

193.	A pillow is said to be a solid. But it can be easily compressed. So which state of matter would it be in OR would it still be called a solid?
Answer» A pillow is said to be a solid. But it can be easily compressed. So which state of matter would it be in OR would it still be called a solid?

Discussion

194.	The particles present in diamond are
Answer» The particles present in diamond are

Discussion

195.	One mole of an ideal gas is put through a series of changes as shown in the figure in which 1, 2, 3 mark the three stages of the system. Find the pressure (in bar) at three stages.
Answer» One mole of an ideal gas is put through a series of changes as shown in the figure in which 1, 2, 3 mark the three stages of the system. Find the pressure (in bar) at three stages.

Discussion

196.	Which of the following is not true for a mixture?
Answer» Which of the following is not true for a mixture?

Discussion

197.	56. How does the metal attains the equilibrium in electrode potential?
Answer» 56. How does the metal attains the equilibrium in electrode potential?

Discussion

198.	If NaCl bis doped with 10−4 mol% of AlCl3 the concentration of cation vacancies will be
Answer» If NaCl bis doped with $10^{- 4}$ mol% of $A l {C l}_{3}$ the concentration of cation vacancies will be

Discussion

199.	Why boric acid is an acid although its formula is B(OH)3 ?
Answer» Why boric acid is an acid although its formula is B(OH)3 ?

Discussion

200.	If saturated vapours are compressed slowly at constant temperature to half the initial volume, the vapour pressure will (1) Becomes double (2) Becomes 4 times (3) Becomes half(4) Remains unchanged
Answer» If saturated vapours are compressed slowly at constant temperature to half the initial volume, the vapour pressure will (1) Becomes double (2) Becomes 4 times (3) Becomes half(4) Remains unchanged

Discussion

Explore topic-wise InterviewSolutions in .

1Q-How solubility of gases in liquids increases on decreasing the temperature? 2Q- How solubility of gases in liquids increases on increasing pressure?

The density d of nuclear matter varies with nucleon number A as

What is the chemical name of hydrogen peroxide

List down the postulates of Dalton's atomic theory.

Which of the following affect evaporation?

Question 5 Which of the following would weigh the highest? (a) 0.2 mole of sucrose (C12H22O11) (b) 2 moles of CO2 (c) 2 moles of CaCO3 (d) 10 moles of H2O

An excess of AgNO3 is added to dichlorotetraaquachromium(lll)Chloride. The number of moles of AgCl precipitated would be: a) 0.01 b) 0.001 c) 0.002 d) 0.003

Benzylidene acetone is the product of mixed condensation between benzaldehyde and acetone. What is its structure?

When a gas jar containing air is inverted over a gas jar containing bromine vapour, the red-brown bromine vapour diffuse into air. Explain how bromine vapour diffuse into air.

Does non polar covalent bond forms only between atoms of same element?

Describe Bohr’s model of the atom.

Which of the following best describes a micelle?

Pure water can be separated from inky water by simple distillation.This is because

Can we reverse the following change? If yes, suggest the name of the method.(a) Water into water vapour(b) Water vapour into water(c) Ice into water(d) Curd into milk.

Which of the following is the metallic element in group-15?

Why ionic radii of Cu2+ is less than Zn2+,Although atomic radius decreases across a period?

Why is atom unbreakable

Identify the product formed in the following reaction: 2NaOH(aq) + CuSO4(aq) → Na2SO4(aq) + ?

What is relative atomic mass ?

Which of these is a colourless, flammable liquid used as a solvent?

If three liquids of densities d, 2d, 3d are mixed withequal proportion of mass, then relative density ofmixture is3511d(1)718d(2)1113d(3)23d(4)18kash Tower, 8, Pusa Road. New Delhi-110005 Ph. 011-47623456

Anion & Cation

The property of virtue of which metals can be drawn into wire is known as:

Name two substances which expand and contract on heating.

54 Calculate volume of 5 gram of acetylene at 50 degree Celsius and 740 mm pressure.

Name the gas evolved when potassium nitrate crystals are heated with sulphuric acid.

A baloon is filled with hydrogen at room temperature.It will burst if pressure exceeds 0.2 bar.If at1 bar pressure the gas occupies 2.27 l volume .Upto what volume can the baloon be expanded?

The dissociation constant of n butyric acid is 1.6 × 10-5 and the molar conductivity at infinite dilution us 380 ×10-4 Sm2mol-1. The specific conductance of the .01 M acid solution is 1) 1.52 × 10-5 Sm-1 2)1.52 × 10-2 Sm-1 3) 1.52 × 10-3 Sm-1 4) none

Which of the following is a natural polymer?

Which of the following are in accordance with Dalton’s atomic theory?

Oxygen is industrially prepared by which process ?

How can we prove that the electrons carry negative charge?

What is the property of buckminsterfullerene?

Why do same elements like Hydrogen , oxygen have different oxidation number with different types of element ?

Why H2O has high melting and boiling point then other member of same group

At which of the following angles, the number of α−particles scattering will be minimum when it is targeted at an atom?

Argon has atomic number of 18 and mass number of 40. Calcium has atomic 20 and mass number 40. Calcium and argon are examples of

Which of the following is the correct atomic structure of sodium metal?

The technique of sublimation is used to separate a mixture of

The pressure of 2 L of O2 gas is doubled when its temperature is increased from 300 K to 600 K. Find the final volume of the gas.

Which of the following molecule has the highest bond length ?(1) C–C(2) N–N(3) O–O(4) F–F

Difference Between boiling and evaporation.

A pillow is said to be a solid. But it can be easily compressed. So which state of matter would it be in OR would it still be called a solid?

The particles present in diamond are

One mole of an ideal gas is put through a series of changes as shown in the figure in which 1, 2, 3 mark the three stages of the system. Find the pressure (in bar) at three stages.

Which of the following is not true for a mixture?

56. How does the metal attains the equilibrium in electrode potential?

If NaCl bis doped with 10−4 mol% of AlCl3 the concentration of cation vacancies will be

Why boric acid is an acid although its formula is B(OH)3 ?

If saturated vapours are compressed slowly at constant temperature to half the initial volume, the vapour pressure will (1) Becomes double (2) Becomes 4 times (3) Becomes half(4) Remains unchanged