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

Question

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 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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The wt. of 2.8 litres of a gas at N.T.P. is 3.50 gms. Its V.D. is

A. 20

B. 28

C. 32

D. 14

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22.4 litres of $S O_{2}$ at 27.3°C and 1 atmosphere pressure shall weigh

A. 32 g

B. 16 g

C. 44.8 g

D. 48.5 g

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The V.D. of a gas is 11.2 gm. The volume occupied by 11.2 gm. of this gas at N.T.P. is

A. 12 litre

B. 11.2 litres

C. 2.24 litres

D. 22.4 litres

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The vapour density of ozone would be

A. 72

B. 8

C. 48

D. 24

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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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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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Which of the following methods is used to determine the atomic weight?

A. Victor Meyer's method

B. Dumas' method

C. Cannizaro's method

D. None of these

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

A. 1:1:1:1

B. 1:2:2:3

C. 2:1:2:3

D. 3:2:2:1

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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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A gas or vapour may be liquefied only at a temperature at or

A. below the critical temperature

B. above the critical temperature

C. above the normal boiling point

D. at any temperature

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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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The coordination number of each sphere in hcp arrangement is

A. 12

B. 8

C. 6

D. 4

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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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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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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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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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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 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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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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Which of the following statement wrong?

A. In solid state molecules, atoms or ions are held with a strong force of attraction and are in a fixed position

B. In liquid state the molecules, atom or ions are held with a strong force and have a restricted motion

C. In gaseous states, the molecules are randomly arranged and are apart from each other

D. Solid, liquid and gaseous states have different movement is particles

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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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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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1.The correct relationship representing the volume occupied by 44 gm of $C O_{2}$ and 64 gm of $S O_{2}$ at constant temperahire and pressure:

A. V( $C O_{2}$ ) > V( $S O_{2}$ )

B. V( $C O_{2}$ ) = V( $S O_{2}$ )

C. V( $S O_{2}$ ) > V( $C O_{2}$ )

D. cannot be predicted

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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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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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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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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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Arrange the following in order of increasing inter-molecular forces and boiling points: $N H_{3}$ ,He, $C l_{2}$

A. $H e < C l_{2} < N H_{3}$

B. $H e > C l_{2} > N H_{3}$

C. $C l_{2} < H e < N H_{3}$

D. $N H_{3} < H e < C l_{2}$

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The kinetic theory of gases predicts that total kinetic energy of a gaseous assembly depends upon the

A. pressure of a gas

B. temperature of the gas

C. volume of the gas

D. pressure, temperature and volume of the gas

Discuss this answer

Accepted Answer

B.

10^{30}

approx

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

Correct Answer :

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Related Questions

The best electrical conductor of the following is

The wt. of 2.8 litres of a gas at N.T.P. is 3.50 gms. Its V.D. is

22.4 litres of $S O_{2}$ at 27.3°C and 1 atmosphere pressure shall weigh

The V.D. of a gas is 11.2 gm. The volume occupied by 11.2 gm. of this gas at N.T.P. is

The vapour density of ozone would be

What types of forces are present in molecular solids?

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

Which of the following methods is used to determine the atomic weight?

Four 1 litre flasks are separately filled with hydrogen, helium, oxygen and ozone gases 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 tetrahedral and octahedral voids per atom in a crystal lattice are, respectively

A gas or vapour may be liquefied only at a temperature at or

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

The coordination number of each sphere in hcp arrangement is

Kinetic gas equation is, PV =...

Correct gas equation is

Indicate the most volatile liquid of the following:

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

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

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

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

Which of the following statement wrong?

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

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

1.The correct relationship representing the volume occupied by 44 gm of $C O_{2}$ and 64 gm of $S O_{2}$ at constant temperahire and pressure:

Cubic close packed arrangement of ions is described as

The molecular weight of a volatile liquid can be determined by

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

Which of the following should be most viscous?

Arrange the following in order of increasing inter-molecular forces and boiling points: $N H_{3}$ ,He, $C l_{2}$

The kinetic theory of gases predicts that total kinetic energy of a gaseous assembly depends upon the

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

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The best electrical conductor of the following is

The wt. of 2.8 litres of a gas at N.T.P. is 3.50 gms. Its V.D. is

22.4 litres of SO2 at 27.3°C and 1 atmosphere pressure shall weigh

The V.D. of a gas is 11.2 gm. The volume occupied by 11.2 gm. of this gas at N.T.P. is

The vapour density of ozone would be

What types of forces are present in molecular solids?

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

Which of the following methods is used to determine the atomic weight?

Four 1 litre flasks are separately filled with hydrogen, helium, oxygen and ozone gases 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 tetrahedral and octahedral voids per atom in a crystal lattice are, respectively

A gas or vapour may be liquefied only at a temperature at or

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

The coordination number of each sphere in hcp arrangement is

Kinetic gas equation is, PV =...

Correct gas equation is

Indicate the most volatile liquid of the following:

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

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

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

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

Which of the following statement wrong?

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

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

22.4 litres of $S O_{2}$ at 27.3°C and 1 atmosphere pressure shall weigh

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1.The correct relationship representing the volume occupied by 44 gm of $C O_{2}$ and 64 gm of $S O_{2}$ at constant temperahire and pressure:

Arrange the following in order of increasing inter-molecular forces and boiling points: $N H_{3}$ ,He, $C l_{2}$