The electrical conductivity of metals is of the order of

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The electrical conductivity of metals is of the order of

A. $10^{12} o h m^{- 1} c m^{- 1}$

B. $10^{8} o h m^{- 1} c m^{- 1}$

C. $10^{2} o h m^{- 1} c m^{- 1}$

D. $10^{- 6} o h m^{- 1} c m^{- 1}$

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The vapour density of ozone would be

A. 72

B. 8

C. 48

D. 24

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At what temperature, the root mean square velocity of oxygen molecules is equal to that of $S O_{2}$ at 27°C?

A. 150°C

B. 150°K

C. 27°C

D. None of these

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The average kinetic energy of the molecule of $S O_{2}$ (moL wt. = 64) at 27°C is E. Then the average kinetic energy of $C O_{2}$ at 27°C is

A. $\frac{E \times 64}{44}$

B. $\frac{E \times 44}{64}$

C. E

D. 22E

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Correct gas equation is

A. $\frac{P_{1} V_{1}}{P_{2} V_{2}} = \frac{T_{1}}{T_{2}}$

B. $\frac{V_{1} T_{2}}{P_{1}} = \frac{P_{2} T_{1}}{T_{2}}$

C. $\frac{P_{1} T_{1}}{V_{1}} = \frac{P_{2} T_{2}}{V_{2}}$

D. $\frac{V_{1} V_{2}}{T_{1} T_{2}} = P_{1} P_{2}$

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Molecular formula of D in the above case is

A. $A B_{5}$

B. $A_{5} B_{2}$

C. $A_{2} B_{5}$

D. AB

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One gram molecule of a gas at N.T.P occupies 22.4 litres. This fact was derived from

A. Benjamin hypothesis

B. Avogadro's hypothesis

C. Dalton's theory

D. Law of atomic volume

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For a given gas at temperature T and pressure P the root mean square velocity (RMS) is C; then at temperature T and pressure 3P the RMS is

A. Unchanged

B. 3C

C. C/3

D. $C^{3}$

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The number of molecules in 32 gms of oxygen in

A. 6.02 x $^{10^{10}}$

B. 3.2 x $^{10^{23}}$

C. 6.02 x $^{10^{22}}$

D. 32 x $^{10^{10}}$

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The space occupied by spheres in ccp arrangement is

A. 74.06%

B. 68.05%

C. 60.4%

D. 52.4%

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Boltzmann constant is given by

A. R

B. R+N

C. R:N

D. R-N

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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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Gases deviate from the ideal behaviour because their molecules

A. possess negligible volume

B. have forces of attraction between them

C. are polyatomic

D. are not attracted to one another

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Density of a gas relative to air is 2.3. If the average molar mass of air is 29.08/mol, the molecular mass of the gas will be

A. 29 gm/mole

B. 66.7 gm/mole

C. 12.67 gm/mole

D. 25.22 gm/mole

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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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6.If the reactants and products both are in gaseous phase they bear a simple ratio in their

A. volumes

B. molecules

C. atoms

D. temperature

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Which of the following should be most viscous?

A. $C H_{3} O H$

B. $C H_{3} C H_{2} O H$

C. $C H_{3} O C H_{3}$

D. $H O C H_{2} C H_{2} O H$

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The number of molecules of $C O_{2}$ present in 44 gms. of $C O_{2}$ is

A. 6 x $^{10^{23}}$ approx

B. $10^{30}$ approx

C. 3 x $^{10^{10}}$ approx

D. 12 x $^{10^{23}}$ approx

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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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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 in 4.25 gm of ammonia are approximately

A. $0.5 \times 10^{23}$

B. $1.5 \times 10^{23}$

C. $2.5 \times 10^{23}$

D. $3.5 \times 10^{23}$

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A balloon filled with ethane is pricked up with sharp point and quickly plunged into a tank of hydrogen at the same pressure. After some time balloon will

A. be enlarged

B. be collapse

C. remain unchanged in size

D. have half its volume of the gas

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Normal boiling points values are for $N H_{3}$ , - 34C, bromine 58°C, carbon tetrachloride 77°C and oxygen - 183°C. Which of these liquids has the highest vapour pressure at room temperature?

A. $N H_{3}$ ,

B. $B r_{2}$

C. $C C l_{4}$

D. $O_{2}$

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The weight of 22.4 litres of any gas at N.T.P. represent its

A. gm atomic weight

B. gm molecular weight

C. gm equivalent weight

D. None of these

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From the Dulong and Petit's law atomic weight is given by which one of the following relations?

A. 6.41 sp. heat

B. 6.4/sp. heat

C. sp. heat/6.4

D. sp. heat/6.4 x 2

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The vapour density of pure ozone would be

A. 32

B. 8

C. 12

D. 24

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When an ideal gas undergoes unrestricted expansion, no cooling occurs because the molecules

A. are above inversion temperature

B. exert no attractive force on each other

C. do work equal to loss in kinetic energy

D. collide without loss of energy

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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

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The vol. of 20 gms of nitrogen at N.T.P.

A. 16 litres

B. 36 litres

C. 8 litre

D. 32 litres

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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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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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Accepted Answer

B.

10^{8} o h m^{- 1} c m^{- 1}

The electrical conductivity of metals is of the order of

Correct Answer :

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Related Questions

The vapour density of ozone would be

At what temperature, the root mean square velocity of oxygen molecules is equal to that of $S O_{2}$ at 27°C?

The average kinetic energy of the molecule of $S O_{2}$ (moL wt. = 64) at 27°C is E. Then the average kinetic energy of $C O_{2}$ at 27°C is

Correct gas equation is

Molecular formula of D in the above case is

One gram molecule of a gas at N.T.P occupies 22.4 litres. This fact was derived from

For a given gas at temperature T and pressure P the root mean square velocity (RMS) is C; then at temperature T and pressure 3P the RMS is

The number of molecules in 32 gms of oxygen in

The space occupied by spheres in ccp arrangement is

Boltzmann constant is given by

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

Gases deviate from the ideal behaviour because their molecules

Density of a gas relative to air is 2.3. If the average molar mass of air is 29.08/mol, the molecular mass of the gas will be

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

6.If the reactants and products both are in gaseous phase they bear a simple ratio in their

Which of the following should be most viscous?

The number of molecules of $C O_{2}$ present in 44 gms. of $C O_{2}$ is

The vapour density of a gas in 35.5. The volume occupies by 3.55 gms of the gas at N.T.P. 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 in 4.25 gm of ammonia are approximately

A balloon filled with ethane is pricked up with sharp point and quickly plunged into a tank of hydrogen at the same pressure. After some time balloon will

Normal boiling points values are for $N H_{3}$ , - 34C, bromine 58°C, carbon tetrachloride 77°C and oxygen - 183°C. Which of these liquids has the highest vapour pressure at room temperature?

The weight of 22.4 litres of any gas at N.T.P. represent its

From the Dulong and Petit's law atomic weight is given by which one of the following relations?

The vapour density of pure ozone would be

When an ideal gas undergoes unrestricted expansion, no cooling occurs because the molecules

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

The vol. of 20 gms of nitrogen at N.T.P.

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

One mole of gas is defined as

Also checkout

The electrical conductivity of metals is of the order of

Correct Answer :

Show all State of Matter MCQ

Related Questions

The vapour density of ozone would be

At what temperature, the root mean square velocity of oxygen molecules is equal to that of SO2 at 27°C?

The average kinetic energy of the molecule of SO2 (moL wt. = 64) at 27°C is E. Then the average kinetic energy of CO2 at 27°C is

Correct gas equation is

Molecular formula of D in the above case is

One gram molecule of a gas at N.T.P occupies 22.4 litres. This fact was derived from

For a given gas at temperature T and pressure P the root mean square velocity (RMS) is C; then at temperature T and pressure 3P the RMS is

The number of molecules in 32 gms of oxygen in

The space occupied by spheres in ccp arrangement is

Boltzmann constant is given by

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

Gases deviate from the ideal behaviour because their molecules

Density of a gas relative to air is 2.3. If the average molar mass of air is 29.08/mol, the molecular mass of the gas will be

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

6.If the reactants and products both are in gaseous phase they bear a simple ratio in their

Which of the following should be most viscous?

The number of molecules of CO2 present in 44 gms. of CO2 is

The vapour density of a gas in 35.5. The volume occupies by 3.55 gms of the gas at N.T.P. 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 in 4.25 gm of ammonia are approximately

A balloon filled with ethane is pricked up with sharp point and quickly plunged into a tank of hydrogen at the same pressure. After some time balloon will

Normal boiling points values are for NH3, - 34C, bromine 58°C, carbon tetrachloride 77°C and oxygen - 183°C. Which of these liquids has the highest vapour pressure at room temperature?

The weight of 22.4 litres of any gas at N.T.P. represent its

From the Dulong and Petit's law atomic weight is given by which one of the following relations?

The vapour density of pure ozone would be

When an ideal gas undergoes unrestricted expansion, no cooling occurs because the molecules

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

The vol. of 20 gms of nitrogen at N.T.P.

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

One mole of gas is defined as

Also checkout

At what temperature, the root mean square velocity of oxygen molecules is equal to that of $S O_{2}$ at 27°C?

The average kinetic energy of the molecule of $S O_{2}$ (moL wt. = 64) at 27°C is E. Then the average kinetic energy of $C O_{2}$ at 27°C is

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

The number of molecules of $C O_{2}$ present in 44 gms. of $C O_{2}$ is

Normal boiling points values are for $N H_{3}$ , - 34C, bromine 58°C, carbon tetrachloride 77°C and oxygen - 183°C. Which of these liquids has the highest vapour pressure at room temperature?