The vol. of 20 gm. of hydrogen at N.T.P. is

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The vol. of 20 gm. of hydrogen at N.T.P. is

A. 22.4 litres

B. 112 litres

C. 12 litres

D. 224 litres

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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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In the process of sublimation, the substance transforms directly

A. from the solid state to the liquid state

B. from the liquid state to gaseous state

C. from the solid state to gaseous state

D. from the liquid state to solid state

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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 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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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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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 pressure of the ideal gas is less than the real gas because of the

A. increase in the number of collisions

B. volume occupied by the molecules

C. inter-molecular attraction

D. finite size of molecules

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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 a given temperature and pressure 2 volumes of A combine with 5 volumes of B to form 2 volumes of C, and 1 volume of A combines with one volume of B to form 2 volumes of D. Then the formula of C is

A. $A B_{5}$

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

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

D. $A B$

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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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The limiting radii ratio for the tetrahedral geometry is

A. 0.155

B. 0.444

C. 0.732

D. 0.225

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The molecular velocity of any gas is

A. proportional to absolute temperature

B. proportional to the square root of absolute temperature

C. independent of temperature

D. proportional to die square of absolute temperature

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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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Boltzmann constant is given by

A. R

B. R+N

C. R:N

D. R-N

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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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The vapour density of gas A is four times that of gas B. If the molecular weight of gas B is M, then the molecular weight of gas A is

A. 2M

B. 4M

C. 8M

D. M/4

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

A. 1

B. 2

C. 3

D. 4

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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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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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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 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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Which of the following contains the same number of atoms as 12 gms: of Magnesium (Atomic weights : Mg = 24, C = 12, Ca = 40)

A. 10 gms of calcium

B. 20 gms of carbon

C. 20 gms of calcium

D. 12 gms of carbon

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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

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The relation between molecular wt. and vapour density is

A. Molecular wt. = $\frac{2}{3}$ V.D.

B. Molecular wt. = $\frac{1}{3}$ V.D.

C. Molecular wt. = V.D.

D. Molecualr wt = 2 x V.D.

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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

Discuss this answer

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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The vol. of 20 gm. of hydrogen at N.T.P. is

A. 22.4 litres

B. 112 litres

C. 12 litres

D. 224 litres

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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

Discuss this answer

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

Discuss this answer

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 $^{10^{23}}$

Discuss this answer

Accepted Answer

A. 22.4 litres

The vol. of 20 gm. of hydrogen at N.T.P. is

Correct Answer :

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Related Questions

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?

In the process of sublimation, the substance transforms directly

Which of the following is an amorphous solid?

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

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)?

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

The pressure of the ideal gas is less than the real gas because of the

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 a given temperature and pressure 2 volumes of A combine with 5 volumes of B to form 2 volumes of C, and 1 volume of A combines with one volume of B to form 2 volumes of D. Then the formula of C is

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

The limiting radii ratio for the tetrahedral geometry is

The molecular velocity of any gas is

Which of the following phrases would be incorrect to use?

Boltzmann constant is given by

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

The vapour density of gas A is four times that of gas B. If the molecular weight of gas B is M, then the molecular weight of gas A is

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

Three dimensional array of points in space is called

In anti-fluorite structure the negative ions

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

Which of the following contains the same number of atoms as 12 gms: of Magnesium (Atomic weights : Mg = 24, C = 12, Ca = 40)

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

The relation between molecular wt. and vapour density is

Lattice energy of a solid is high if

Molecular formula of D in the above case is

The vol. of 20 gm. of hydrogen at N.T.P. is

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

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

The number of molecules is 4.25 g of ammonia are approximately

Also checkout

The vol. of 20 gm. of hydrogen at N.T.P. is

Correct Answer :

Show all State of Matter MCQ

Related Questions

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?

In the process of sublimation, the substance transforms directly

Which of the following is an amorphous solid?

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

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)?

Arrange the following in order of increasing inter-molecular forces and boiling points:NH3,He,Cl2

The pressure of the ideal gas is less than the real gas because of the

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 a given temperature and pressure 2 volumes of A combine with 5 volumes of B to form 2 volumes of C, and 1 volume of A combines with one volume of B to form 2 volumes of D. Then the formula of C is

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

The limiting radii ratio for the tetrahedral geometry is

The molecular velocity of any gas is

Which of the following phrases would be incorrect to use?

Boltzmann constant is given by

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

The vapour density of gas A is four times that of gas B. If the molecular weight of gas B is M, then the molecular weight of gas A is

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

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

Three dimensional array of points in space is called

In anti-fluorite structure the negative ions

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

Which of the following contains the same number of atoms as 12 gms: of Magnesium (Atomic weights : Mg = 24, C = 12, Ca = 40)

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

The relation between molecular wt. and vapour density is

Lattice energy of a solid is high if

Molecular formula of D in the above case is

The vol. of 20 gm. of hydrogen at N.T.P. is

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

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

The number of molecules is 4.25 g of ammonia are approximately

Also checkout

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?

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)?

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

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

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

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

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