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

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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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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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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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A closed vessel contains equal number of molecules of a total pressure at 740 mm. If oxygen is removed from the system the pressure will

A. become half of 740 mm

B. remain unchanged

C. become 1/9 of 740 mm

D. become double of 740 mm

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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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In a unit cell of cesium chloride the arrangement of cesium ions is

A. face centred cubic

B. hexagonal close packed

C. body centred cubic

D. simple cubic

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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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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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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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5.At a given temperature and pressure 2 volumes of A combine with 5 volumes of B to form 2 volmes of C and 1 volume. A combine with one volume of B to form 2 volumes of D. The formula of C is

A. $A_{3} B_{6}$

B. $\sqrt{A B}$

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

D. $A B_{5}$

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Which of the following is an amorphous solid?

A. NaCl

B. $C a F_{2}$

C. Diamond

D. Glass

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The best electrical conductor of the following is

A. $C O_{2}$ (s)

B. Si(s)

C. NaCl (fused)

D. $B r_{2}$ (I)

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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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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

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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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What will be the mass of 6.023 x $10^{23}$ molecules of carbon monoxide?

A. 14 gm

B. 28 gm

C. 16 gm

D. 44 gm

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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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In a face centred cubic arrangement of ions, the coordination number of ions is

A. 6

B. 8

C. 12

D. 4

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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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The vapour density of pure ozone would be

A. 32

B. 8

C. 12

D. 24

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

A. N

B. 2N

C. 4N

D. 8N

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Number of molecules of carbon dioxide present in 44 gm $C O_{2}$ is

A. 12 x $^{10^{23}}$ approximately

B. 3 x $^{10^{10}}$ approximately

C. 6 x $^{10^{10}}$ approximately

D. 3 x $^{10^{23}}$ approximately

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In what ratio by mass carbon monoxide and nitrogen should be mixed so that partial pressure exerted by each gas is same?

A. $m (N_{2}) = m (C O)$

B. $m (N_{2}) = 2 m (C O)$

C. $m (N_{2}) = 0.5 m (C O)$

D. None of these

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When there is more deviation in the behaviour of a gas from ideal gas equation PV = nRT

A. at high temperature and low pressure

B. at low temperature and high pressure

C. at high temperature and high pressure

D. at low temperature and low pressure

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In anti-fluorite structure the negative ions

A. occupy tetrahedral voids

B. occupy octahedral voids

C. are arranged in ccp

D. are arranged in hcp

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The ionic radii of $R b^{+}$ and $B r^{-}$ ions are 1.47 $\overset{°}{A}$ and 1.95 $\overset{°}{A}$ , respectively. The most probable type of geometry exhibited by RbBr on the radius ratio rule is

A. NaCl type

B. CsCl type

C. Zinc blende structure

D. Wurtzite structure

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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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Vapour density of a gas is 35.5. The volume occupied by 3.55 gm of the gas at NTPis

A. 1.12 litres

B. 2.24 litres

C. 22.4 litres

D. 11.2 litres

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The molecular weight of a volatile liquid can be determined by

A. Dumas' method

B. Victor Meyer's method

C. Cryoscopic method

D. Osmotic pressure

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The number of tetrahedral and octahedral voids per atom in a crystal lattice are, respectively

A. 1,1

B. 2,2

C. 2,1

D. 2,6

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The ratio of RMS velocity to average velocity of a gas molecule at a particular temperature is

A. 1.086:1

B. 1:1.086

C. 2 :1.086

D. 1.086 : 2

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Accepted Answer

A. Low temperature and high pressure

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

Correct Answer :

Show all State of Matter MCQ

Related Questions

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

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

A closed vessel contains equal number of molecules of a total pressure at 740 mm. If oxygen is removed from the system the pressure will

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

In a unit cell of cesium chloride the arrangement of cesium ions is

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

Three dimensional array of points in space is called

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

5.At a given temperature and pressure 2 volumes of A combine with 5 volumes of B to form 2 volmes of C and 1 volume. A combine with one volume of B to form 2 volumes of D. The formula of C is

Which of the following is an amorphous solid?

The best electrical conductor of the following is

What types of forces are present in molecular solids?

All gases tend to show ideal behaviour

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

What will be the mass of 6.023 x $10^{23}$ molecules of carbon monoxide?

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

In a face centred cubic arrangement of ions, the coordination number of ions is

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

The vapour density of pure ozone would be

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

Number of molecules of carbon dioxide present in 44 gm $C O_{2}$ is

In what ratio by mass carbon monoxide and nitrogen should be mixed so that partial pressure exerted by each gas is same?

When there is more deviation in the behaviour of a gas from ideal gas equation PV = nRT

In anti-fluorite structure the negative ions

The ionic radii of $R b^{+}$ and $B r^{-}$ ions are 1.47 $\overset{°}{A}$ and 1.95 $\overset{°}{A}$ , respectively. The most probable type of geometry exhibited by RbBr on the radius ratio rule is

One mole of gas is defined as

Vapour density of a gas is 35.5. The volume occupied by 3.55 gm of the gas at NTPis

The molecular weight of a volatile liquid can be determined by

The number of tetrahedral and octahedral voids per atom in a crystal lattice are, respectively

The ratio of RMS velocity to average velocity of a gas molecule at a particular temperature is

Also checkout

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

Correct Answer :

Show all State of Matter MCQ

Related Questions

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

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

A closed vessel contains equal number of molecules of a total pressure at 740 mm. If oxygen is removed from the system the pressure will

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

In a unit cell of cesium chloride the arrangement of cesium ions is

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

Three dimensional array of points in space is called

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

5.At a given temperature and pressure 2 volumes of A combine with 5 volumes of B to form 2 volmes of C and 1 volume. A combine with one volume of B to form 2 volumes of D. The formula of C is

Which of the following is an amorphous solid?

The best electrical conductor of the following is

What types of forces are present in molecular solids?

All gases tend to show ideal behaviour

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

What will be the mass of 6.023 x 1023 molecules of carbon monoxide?

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

In a face centred cubic arrangement of ions, the coordination number of ions is

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

The vapour density of pure ozone would be

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

Number of molecules of carbon dioxide present in 44 gm CO2 is

In what ratio by mass carbon monoxide and nitrogen should be mixed so that partial pressure exerted by each gas is same?

When there is more deviation in the behaviour of a gas from ideal gas equation PV = nRT

In anti-fluorite structure the negative ions

The ionic radii of Rb+ and Br- ions are 1.47 A° and 1.95 A°, respectively. The most probable type of geometry exhibited by RbBr on the radius ratio rule is

One mole of gas is defined as

Vapour density of a gas is 35.5. The volume occupied by 3.55 gm of the gas at NTPis

The molecular weight of a volatile liquid can be determined by

The number of tetrahedral and octahedral voids per atom in a crystal lattice are, respectively

The ratio of RMS velocity to average velocity of a gas molecule at a particular temperature is

Also checkout

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 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

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

What will be the mass of 6.023 x $10^{23}$ molecules of carbon monoxide?

Number of molecules of carbon dioxide present in 44 gm $C O_{2}$ is

The ionic radii of $R b^{+}$ and $B r^{-}$ ions are 1.47 $\overset{°}{A}$ and 1.95 $\overset{°}{A}$ , respectively. The most probable type of geometry exhibited by RbBr on the radius ratio rule is