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

Question

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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Which of the following would you expect to affect the vapour pressure of a liquid?

A. Inter-molecular forces in the liquid

B. Volume of the liquid in the liquid-vapour equilibrium

C. Volume of the vapour in the liquid-vapour equilibrium

D. The size of the container in which liquid-vapour equilibrium is establishe

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Kinetic gas equation is, PV =...

A. nRT

B. $\frac{3}{3}$ RT

C. $m n^{1} c^{2}$

D. $\frac{1}{3} m n c^{2}$

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The Van der Waal's equation explains the behaviour of

A. ideal gases

B. real gases

C. vapours

D. non-real gases

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In NaCl type structure, the coordination number of the cation and anion are

A. 6 and 4

B. 6 and 6

C. 4 and 4

D. 8 and 4

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Which of the following is an example of covalent network solid?

A. Sodium

B. Solid carbon dioxide

C. Sodium chloride

D. Silicon

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In zinc blende structure, the zinc atoms occupy

A. all tetrahedral sites

B. all octahedral sites

C. half of the octahedral sites

D. half of the tetrahedral sites

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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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Of the following properties, the magnitude of one must always increase with temperature. The property is

A. vapour pressure

B. density

C. $∆ H_{v a p}$

D. surface tension

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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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The ionic radii of $M g^{+ 2}$ and $O^{- 2}$ are 0.66 $\overset{°}{A}$ and 1.40 $\overset{°}{A}$ , respectively. The most probable type of gteometry exhibited by MgO on the basis of radius ratio rule is

A. NaCl type

B. CsCl type

C. ZnS type

D. Boron oxide type

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Lattice energy of a solid is high if

A. the radii of the ions are large

B. radii of the ions are small

C. charge on the ions are small

D. the ions are neutral

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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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In a closed packed structure the pattern ABAB...... represents which one of the following:

A. ccp

B. hcp

C. fccp

D. bcc

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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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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 number of atoms in 0.004 gm of magnesium is close to

A. 36x $^{10^{5}}$

B. $^{10^{20}}$

C. 5 x $^{10^{20}}$

D. 6.02 x $^{10^{23}}$

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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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In the gas equation PV = xT, x is a constant. The value of the constant depends upon

A. the quantity of gas

B. the quality of gas

C. type values of T and P

D. None of these

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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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Sodium chloride has fee structure. How many $N a^{+}$ and $C l^{-}$ ions are there in the unit cell?.

A. 6 and 6

B. 4 and 4

C. 1 and 1

D. 6 and 4

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Indicate the most volatile liquid of the following:

A. $C H_{3} O H$

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

C. $H_{2} O$

D. $C H_{3} C H_{2} O C H_{2} C H_{3}$

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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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To which of the following mixtures is the Dalton's law of partial pressures not applicable?

A. $H_{2} + O_{2}$

B. $N_{2} + O_{2}$

C. NO + $O_{2}$

D. Xe + Ar

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In a dose packed arrangement of N spheres, the number of tetrahedral holes are

A. N

B. 2N

C. N/2

D. $N_{2}$

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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 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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If all the octahedral sites in a cubic close packed arrangement ( $B^{-}$ ) are completelyfilled with $A^{+}$ cations, the empirical formula of the compound could then be

A. $A B_{2}$

B. $A_{2} B$

C. AB

D. None of these

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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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A chalk box exhibits

A. cubic geometry

B. monoclinic geometry

C. orthorhombic geometry

D. tetragonal

Discuss this answer

An element has atomic weight 24 and equivalent weight 11.9. Its valency is

A. 1

B. 2

C. 3

D. 4

Discuss this answer

Accepted Answer

C. 6 x

^{10^{10}}

approximately

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

Correct Answer :

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Related Questions

Which of the following would you expect to affect the vapour pressure of a liquid?

Kinetic gas equation is, PV =...

The Van der Waal's equation explains the behaviour of

In NaCl type structure, the coordination number of the cation and anion are

Which of the following is an example of covalent network solid?

In zinc blende structure, the zinc atoms occupy

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

Of the following properties, the magnitude of one must always increase with temperature. The property is

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

The ionic radii of $M g^{+ 2}$ and $O^{- 2}$ are 0.66 $\overset{°}{A}$ and 1.40 $\overset{°}{A}$ , respectively. The most probable type of gteometry exhibited by MgO on the basis of radius ratio rule is

Lattice energy of a solid is high if

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

In a closed packed structure the pattern ABAB...... represents which one of the following:

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

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 number of atoms in 0.004 gm of magnesium is close to

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

In the gas equation PV = xT, x is a constant. The value of the constant depends upon

Cubic close packed arrangement of ions is described as

Sodium chloride has fee structure. How many $N a^{+}$ and $C l^{-}$ ions are there in the unit cell?.

Indicate the most volatile liquid of the following:

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

To which of the following mixtures is the Dalton's law of partial pressures not applicable?

In a dose packed arrangement of N spheres, the number of tetrahedral holes are

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

The number of molecules in 32 gms of oxygen in

If all the octahedral sites in a cubic close packed arrangement ( $B^{-}$ ) are completelyfilled with $A^{+}$ cations, the empirical formula of the compound could then be

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 chalk box exhibits

An element has atomic weight 24 and equivalent weight 11.9. Its valency is

Also checkout

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

Correct Answer :

Show all State of Matter MCQ

Related Questions

Which of the following would you expect to affect the vapour pressure of a liquid?

Kinetic gas equation is, PV =...

The Van der Waal's equation explains the behaviour of

In NaCl type structure, the coordination number of the cation and anion are

Which of the following is an example of covalent network solid?

In zinc blende structure, the zinc atoms occupy

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

Of the following properties, the magnitude of one must always increase with temperature. The property is

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

The ionic radii of Mg+2 and O-2 are 0.66 A° and 1.40 A° , respectively. The most probable type of gteometry exhibited by MgO on the basis of radius ratio rule is

Lattice energy of a solid is high if

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

In a closed packed structure the pattern ABAB...... represents which one of the following:

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

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 number of atoms in 0.004 gm of magnesium is close to

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

In the gas equation PV = xT, x is a constant. The value of the constant depends upon

Cubic close packed arrangement of ions is described as

Sodium chloride has fee structure. How many Na+ and Cl- ions are there in the unit cell?.

Indicate the most volatile liquid of the following:

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

To which of the following mixtures is the Dalton's law of partial pressures not applicable?

In a dose packed arrangement of N spheres, the number of tetrahedral holes are

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

The number of molecules in 32 gms of oxygen in

If all the octahedral sites in a cubic close packed arrangement (B-) are completelyfilled with A+ cations, the empirical formula of the compound could then be

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 chalk box exhibits

An element has atomic weight 24 and equivalent weight 11.9. Its valency is

Also checkout

Number of molecules of carbon dioxide present in 44 gm $C O_{2}$ 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 ionic radii of $M g^{+ 2}$ and $O^{- 2}$ are 0.66 $\overset{°}{A}$ and 1.40 $\overset{°}{A}$ , respectively. The most probable type of gteometry exhibited by MgO on the basis of radius ratio rule 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?

Sodium chloride has fee structure. How many $N a^{+}$ and $C l^{-}$ ions are there in the unit cell?.

If all the octahedral sites in a cubic close packed arrangement ( $B^{-}$ ) are completelyfilled with $A^{+}$ cations, the empirical formula of the compound could then be