At 303 K ethanol has a vapour pressure of about 0.118 atm., acetic acid has the vapour pressure of about 0.039 atm., and ethyl iodide has a vapour pressure of about 0.263 atm. Which of the following represents the correct order of increasing normal boiling point ?

Question

At 303 K ethanol has a vapour pressure of about 0.118 atm., acetic acid has the vapour pressure of about 0.039 atm., and ethyl iodide has a vapour pressure of about 0.263 atm. Which of the following represents the correct order of increasing normal boiling point ?

A. $C H_{3} C O O H < C_{2} H_{5} O H < C_{2} H_{5} I$

B. $C_{2} H_{5} I < C H_{3} C O O H < C_{2} H_{5} O H$

C. $C_{2} H_{5} I < C_{2} H_{5} O H < C H_{3} C O O H$

D. $C_{2} H_{5} O H < C_{2} H_{5} I < C H_{3} C O O H$

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What is the vapour pressure of benzoyl chloride at its boiling point (197°C)?

A. 760 torr

B. 380 torr

C. 197 torr

D. None of these

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A vessel containing 10 litre of air at atmospheric pressure is connected to an evacuated 9 litre vessel The resulting pressure will be

A. 2 atm

B. 31 atm

C. 0.526 atm

D. 52.6 atm

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20 litres of hydrogen gas weighs about

A. 1.8 g

B. 3.6 g

C. 224 g

D. 12.2 g

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22.4 litre of any gas at N.T.P. will contain

A. One gram equivalent

B. One gram atomic weight

C. One gram atom

D. One gram molecule

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Which one of the following contains same number of molecules as 4.4 gm of carbon dioxide (mol. wt. of $C O_{2}$ = 44, Mol, wt. of $S O_{2}$ = 64)?

A. 64 gm of sulphur dioxide

B. 4.4 gm of sulphur dioxide

C. 6.4 gm of sulphur dioxide

D. 3.2 gm of sulphur dioxide

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Which of the following phrases would be incorrect to use?

A. An atom of an element

B. An atom of a compound

C. A molecule of a compound

D. A molecule of an element

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Three dimensional array of points in space is called

A. unit cell

B. crystal lattice

C. micro-crystal

D. None of these

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One mole of gas is defined as

A. The number of molecules in 22.4 litres of gas at S.T.P

B. The number of molecules contained | in 6 grams of 12 C isotope

C. The number of molecules in one formula weight of gas

D. The number of molecules in litre of gas

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The vapour density of ozone would be

A. 72

B. 8

C. 48

D. 24

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The radii of $A^{+}$ and $X^{-}$ are 95 pm and 181 pm respectively. Coordination number of $A^{+}$ is expected to be

A. 8

B. 6

C. 4

D. 3

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Cubic close packed arrangement of ions is described as

A. ABC AB ABC.....

B. ABC ABC......

C. AB AB..........

D. ABC CBA...

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Volume occupied by 4.4 gift of carbon dioxide is

A. 4.4 litres

B. 2.24 litres

C. 22.4 litres

D. 4.48 litres

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In a solid atoms A are arranged in ccp array. Atoms B occupy all the octahedral voids and half the tetrahedral voids. The formula of the compound is expected to be

A. $A B_{2}$

B. $A B_{3}$

C. $A_{2} B_{3}$

D. $A_{2} B$

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The vapour density of completely dissociated sociated $N H_{4} C L$ would be

A. Determined by the amount of solid $N H_{4} C L$ used in the experiment

B. Triple to that of $N H_{4} C L$

C. Half of that $N H_{4} C L$

D. Slightly less than half of that of $N H_{4} C L$

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7.Which of the following sets of conditions represent the easiest way to liquefy a gas?

A. Low temperature and high pressure

B. High temperature and low pressure

C. High temperature and low pressure

D. None of these

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If the tetrahedral sites in ccp arrangement of negative ions (Y) were half filled with cation (X), the empirical formula of the compound would be

A. $X_{2} Y$

B. XY

C. $X Y_{2}$

D. $X_{2} Y_{3}$

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The vapour density of a gas in 35.5. The volume occupies by 3.55 gms of the gas at N.T.P. is

A. 224 litres

B. 2.24 litres

C. 11.12 litres

D. 1.12 litres

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Equal weights of methane and hydrogen are mixed in an empty container at 25°C. The fraction of the total pressure exerted by methane is

A. 1/2

B. 1/3

C. 1/9

D. 8/9

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Chloroform and benzene form a pair of miscible liquids. These can be separated by

A. a separating funnel

B. distillation

C. sublimation

D. filtration

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The vapour density of a gas is 11.2. The volume occupied by 2.4 g of the gas at S.T.P wil be

A. 2.4 litres

B. 3.6 litres

C. 2.24 litres

D. 11.2 liters

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In which one of the following does diffusion occur most rapidly?

A. Solid

B. Liquid

C. Gases

D. Gels

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A liquid of density 1.742 g $c m^{- 3}$ is observed to show a capillary rise of 73 mm in a tube of radius 0.65 mm. Then the surface tension of the liquid is

A. 4.1 x $^{10^{- 2}}$ dynes $c m^{- 1}$

B. 4.1 x $10^{3}$ dynes $c m^{- 1}$

C. 7.1 x $10^{- 3}$ dynes $c m^{- 1}$

D. None of these

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Four 1 litre flasks are separately filled with the gases hydrogen, helium, oxygen and ozone at the same temperature and pressure, the ratio of total number of atoms of these gases present in the different flasks would be

A. 3:2:2:1

B. 2:1:2:3

C. 1:2:2:3

D. 1:1:1:1

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The number of molecules is 4.25 g of ammonia are approximately

A. 3.5 x $^{10^{23}}$

B. 2.5 x $^{10^{23}}$

C. 1.5 x $^{10^{23}}$

D. 0.5 x $^{10^{23}}$

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In the ideal gas equation PV = nRT constant 'R' has the unit

A. joule

B. litre/mol

C. lit-atm/deg/mol

D. calorie/mole

Discuss this answer

Absolute zero is the temperature at which

A. water freezes

B. all gases become liquid

C. all substances are solid

D. molecular motion ceases

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What types of forces are present in molecular solids?

A. electrovalent bonds

B. hydrogen bonds

C. metallic bonds

D. Van der Waal's forces

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The vapour density of pure ozone would be

A. 32

B. 8

C. 12

D. 24

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All gases tend to show ideal behaviour

A. at low temperature and low pressure

B. at high temperature and high pressure

C. at high temperature and low pressure

D. at low temperature and high pressure

Discuss this answer

In a close packed arrangement of N spheres, the number of octahedral holes are

A. N

B. 2N

C. 4N

D. 8N

Discuss this answer

Accepted Answer

C.

C_{2} H_{5} I < C_{2} H_{5} O H < C H_{3} C O O H

At 303 K ethanol has a vapour pressure of about 0.118 atm., acetic acid has the vapour pressure of about 0.039 atm., and ethyl iodide has a vapour pressure of about 0.263 atm. Which of the following represents the correct order of increasing normal boiling point ?

Correct Answer :

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Related Questions

What is the vapour pressure of benzoyl chloride at its boiling point (197°C)?

A vessel containing 10 litre of air at atmospheric pressure is connected to an evacuated 9 litre vessel The resulting pressure will be

20 litres of hydrogen gas weighs about

22.4 litre of any gas at N.T.P. will contain

Which one of the following contains same number of molecules as 4.4 gm of carbon dioxide (mol. wt. of $C O_{2}$ = 44, Mol, wt. of $S O_{2}$ = 64)?

Which of the following phrases would be incorrect to use?

Three dimensional array of points in space is called

One mole of gas is defined as

The vapour density of ozone would be

The radii of $A^{+}$ and $X^{-}$ are 95 pm and 181 pm respectively. Coordination number of $A^{+}$ is expected to be

Cubic close packed arrangement of ions is described as

Volume occupied by 4.4 gift of carbon dioxide is

In a solid atoms A are arranged in ccp array. Atoms B occupy all the octahedral voids and half the tetrahedral voids. The formula of the compound is expected to be

The vapour density of completely dissociated sociated $N H_{4} C L$ would be

7.Which of the following sets of conditions represent the easiest way to liquefy a gas?

If the tetrahedral sites in ccp arrangement of negative ions (Y) were half filled with cation (X), the empirical formula of the compound would be

The vapour density of a gas in 35.5. The volume occupies by 3.55 gms of the gas at N.T.P. is

Equal weights of methane and hydrogen are mixed in an empty container at 25°C. The fraction of the total pressure exerted by methane is

Chloroform and benzene form a pair of miscible liquids. These can be separated by

The vapour density of a gas is 11.2. The volume occupied by 2.4 g of the gas at S.T.P wil be

In which one of the following does diffusion occur most rapidly?

A liquid of density 1.742 g $c m^{- 3}$ is observed to show a capillary rise of 73 mm in a tube of radius 0.65 mm. Then the surface tension of the liquid is

Four 1 litre flasks are separately filled with the gases hydrogen, helium, oxygen and ozone at the same temperature and pressure, the ratio of total number of atoms of these gases present in the different flasks would be

The number of molecules is 4.25 g of ammonia are approximately

In the ideal gas equation PV = nRT constant 'R' has the unit

Absolute zero is the temperature at which

What types of forces are present in molecular solids?

The vapour density of pure ozone would be

All gases tend to show ideal behaviour

In a close packed arrangement of N spheres, the number of octahedral holes are

Also checkout

At 303 K ethanol has a vapour pressure of about 0.118 atm., acetic acid has the vapour pressure of about 0.039 atm., and ethyl iodide has a vapour pressure of about 0.263 atm. Which of the following represents the correct order of increasing normal boiling point ?

Correct Answer :

Show all State of Matter MCQ

Related Questions

What is the vapour pressure of benzoyl chloride at its boiling point (197°C)?

A vessel containing 10 litre of air at atmospheric pressure is connected to an evacuated 9 litre vessel The resulting pressure will be

20 litres of hydrogen gas weighs about

22.4 litre of any gas at N.T.P. will contain

Which one of the following contains same number of molecules as 4.4 gm of carbon dioxide (mol. wt. of CO2 = 44, Mol, wt. of SO2 = 64)?

Which of the following phrases would be incorrect to use?

Three dimensional array of points in space is called

One mole of gas is defined as

The vapour density of ozone would be

The radii of A+ and X- are 95 pm and 181 pm respectively. Coordination number of A+ is expected to be

Cubic close packed arrangement of ions is described as

Volume occupied by 4.4 gift of carbon dioxide is

In a solid atoms A are arranged in ccp array. Atoms B occupy all the octahedral voids and half the tetrahedral voids. The formula of the compound is expected to be

The vapour density of completely dissociated sociated NH4CL would be

7.Which of the following sets of conditions represent the easiest way to liquefy a gas?

If the tetrahedral sites in ccp arrangement of negative ions (Y) were half filled with cation (X), the empirical formula of the compound would be

The vapour density of a gas in 35.5. The volume occupies by 3.55 gms of the gas at N.T.P. is

Equal weights of methane and hydrogen are mixed in an empty container at 25°C. The fraction of the total pressure exerted by methane is

Chloroform and benzene form a pair of miscible liquids. These can be separated by

The vapour density of a gas is 11.2. The volume occupied by 2.4 g of the gas at S.T.P wil be

In which one of the following does diffusion occur most rapidly?

A liquid of density 1.742 g cm-3 is observed to show a capillary rise of 73 mm in a tube of radius 0.65 mm. Then the surface tension of the liquid is

Four 1 litre flasks are separately filled with the gases hydrogen, helium, oxygen and ozone at the same temperature and pressure, the ratio of total number of atoms of these gases present in the different flasks would be

The number of molecules is 4.25 g of ammonia are approximately

In the ideal gas equation PV = nRT constant 'R' has the unit

Absolute zero is the temperature at which

What types of forces are present in molecular solids?

The vapour density of pure ozone would be

All gases tend to show ideal behaviour

In a close packed arrangement of N spheres, the number of octahedral holes are

Also checkout

Which one of the following contains same number of molecules as 4.4 gm of carbon dioxide (mol. wt. of $C O_{2}$ = 44, Mol, wt. of $S O_{2}$ = 64)?

The radii of $A^{+}$ and $X^{-}$ are 95 pm and 181 pm respectively. Coordination number of $A^{+}$ is expected to be

The vapour density of completely dissociated sociated $N H_{4} C L$ would be

A liquid of density 1.742 g $c m^{- 3}$ is observed to show a capillary rise of 73 mm in a tube of radius 0.65 mm. Then the surface tension of the liquid is