The number of molecules in 4.25 gm of ammonia are approximately

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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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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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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 will be the mass of 6.03 x $^{10^{23}}$ molecules of carbon monoxide ?

A. 18.00

B. 28.01

C. 56.02

D. 14.05

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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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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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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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Boltzmann constant is given by

A. R

B. R+N

C. R:N

D. R-N

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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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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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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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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 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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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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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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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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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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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 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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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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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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How many nearest neighbours are there in an atom or ion in an octahedral hole of a close packed structure?

A. 4

B. 6

C. 8

D. 18

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The vapour density of pure ozone would be

A. 32

B. 8

C. 12

D. 24

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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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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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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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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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In the wurtzite structure sulphur atoms have

A. cubic arrangement

B. hexagonal dose packed arrangement

C. body centred arrangement

D. None of these

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Absolute zero is the temperature at which

A. water freezes

B. all gases become liquid

C. all substances are solid

D. molecular motion ceases

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Avogadro stated that under similar conditions of temperature and pressure equal volumes of all gases contain equal number of

A. atoms

B. molecules

C. electrons

D. ions

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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

Discuss this answer

Accepted Answer

B.

1.5 \times 10^{23}

The number of molecules in 4.25 gm of ammonia are approximately

Correct Answer :

Show all State of Matter MCQ

Related Questions

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

What types of forces are present in molecular solids?

What will be the mass of 6.03 x $^{10^{23}}$ molecules of carbon monoxide ?

Kinetic gas equation is, PV =...

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

In anti-fluorite structure the negative ions

Boltzmann constant is given by

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

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

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

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

The molecular velocity of any gas is

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

Cubic close packed arrangement of ions is described as

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

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

All gases tend to show ideal behaviour

The vapour density of a gas in 35.5. The volume occupies by 3.55 gms of the gas at N.T.P. is

Which of the following phrases would be incorrect to use?

Indicate the most volatile liquid of the following:

How many nearest neighbours are there in an atom or ion in an octahedral hole of a close packed structure?

The vapour density of pure ozone would be

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

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

Gases deviate from the ideal behaviour because their molecules

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

In the wurtzite structure sulphur atoms have

Absolute zero is the temperature at which

Avogadro stated that under similar conditions of temperature and pressure equal volumes of all gases contain equal number of

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

Also checkout

The number of molecules in 4.25 gm of ammonia are approximately

Correct Answer :

Show all State of Matter MCQ

Related Questions

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

What types of forces are present in molecular solids?

What will be the mass of 6.03 x 1023 molecules of carbon monoxide ?

Kinetic gas equation is, PV =...

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

In anti-fluorite structure the negative ions

Boltzmann constant is given by

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

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

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

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

The molecular velocity of any gas is

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

Cubic close packed arrangement of ions is described as

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

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

All gases tend to show ideal behaviour

The vapour density of a gas in 35.5. The volume occupies by 3.55 gms of the gas at N.T.P. is

Which of the following phrases would be incorrect to use?

Indicate the most volatile liquid of the following:

How many nearest neighbours are there in an atom or ion in an octahedral hole of a close packed structure?

The vapour density of pure ozone would be

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

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

Gases deviate from the ideal behaviour because their molecules

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

In the wurtzite structure sulphur atoms have

Absolute zero is the temperature at which

Avogadro stated that under similar conditions of temperature and pressure equal volumes of all gases contain equal number of

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

Also checkout

What will be the mass of 6.03 x $^{10^{23}}$ molecules of carbon monoxide ?

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

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

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

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