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

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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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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 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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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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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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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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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 coordination number of each sphere in hcp arrangement is

A. 12

B. 8

C. 6

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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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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Which compound possesses greatest lattice energy?

A. LiF

B. NaF

C. KF

D. CsF

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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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Which of the following is an amorphous solid?

A. NaCl

B. $C a F_{2}$

C. Diamond

D. Glass

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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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Volume occupied by 4.4 gift of carbon dioxide is

A. 4.4 litres

B. 2.24 litres

C. 22.4 litres

D. 4.48 litres

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The number of atoms per unit cell in simple cubic, face centred cubic and body centred cubic arrangement are, respectively

A. 8,14,9

B. 1,2,4

C. 1,4,2

D. 8,4, 2

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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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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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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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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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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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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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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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A balloon filled with ethane is pricked up with sharp point and quickly plunged into a tank of hydrogen at the same pressure. After some time balloon will

A. be enlarged

B. be collapse

C. remain unchanged in size

D. have half its volume of the gas

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How many nearest neighbours are there in an octahedral hole of a close packed structure

A. 4

B. 6

C. 8

D. 12

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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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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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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 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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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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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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Accepted Answer

C. 20 gms of calcium

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

Correct Answer :

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Related Questions

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

The Van der Waal's equation explains the behaviour of

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

Absolute zero is the temperature at which

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

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

The coordination number of each sphere in hcp arrangement is

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

Three dimensional array of points in space is called

Which compound possesses greatest lattice energy?

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

Which of the following is an amorphous solid?

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

Volume occupied by 4.4 gift of carbon dioxide is

The number of atoms per unit cell in simple cubic, face centred cubic and body centred cubic arrangement are, respectively

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

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

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

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

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

Which of the following statement wrong?

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 balloon filled with ethane is pricked up with sharp point and quickly plunged into a tank of hydrogen at the same pressure. After some time balloon will

How many nearest neighbours are there in an octahedral hole of a close packed structure

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

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

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

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

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 relation between molecular wt. and vapour density is

Also checkout

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

Correct Answer :

Show all State of Matter MCQ

Related Questions

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

The Van der Waal's equation explains the behaviour of

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

Absolute zero is the temperature at which

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

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

The coordination number of each sphere in hcp arrangement is

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

Three dimensional array of points in space is called

Which compound possesses greatest lattice energy?

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

Which of the following is an amorphous solid?

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

Volume occupied by 4.4 gift of carbon dioxide is

The number of atoms per unit cell in simple cubic, face centred cubic and body centred cubic arrangement are, respectively

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

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

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

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

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

Which of the following statement wrong?

1.The correct relationship representing the volume occupied by 44 gm of CO2 and 64 gm of SO2 at constant temperahire and pressure:

A balloon filled with ethane is pricked up with sharp point and quickly plunged into a tank of hydrogen at the same pressure. After some time balloon will

How many nearest neighbours are there in an octahedral hole of a close packed structure

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

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

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

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

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 relation between molecular wt. and vapour density is

Also checkout

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

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

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

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:

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