Three dimensional array of points in space is called

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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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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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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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Which compound possesses greatest lattice energy?

A. LiF

B. NaF

C. KF

D. CsF

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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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Which of the following will have low heat of fusion?

A. a molecular solid

B. an ionic solid

C. a metallic solid

D. a network of covalent solid

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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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The critical temperature of a substance is defined as

A. the temperature above which the substance decomposes

B. the temperature above which the substance can exist only as a gas

C. melting point of the substance

D. boiling point of the substanc

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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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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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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 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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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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Density of a gas relative to air is 2.3. If the average molar mass of air is 29.08/mol, the molecular mass of the gas will be

A. 29 gm/mole

B. 66.7 gm/mole

C. 12.67 gm/mole

D. 25.22 gm/mole

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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 a solid atoms A are arranged in ccp array. Atoms B occupy all the octahedral voids and half the tetrahedral voids. The formula of the compound is expected to be

A. $A B_{2}$

B. $A B_{3}$

C. $A_{2} B_{3}$

D. $A_{2} B$

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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 $^{10^{23}}$

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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 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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How many moles of water are present in 180 gm. of water ?

A. 11

B. 5

C. 90

D. 21

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According to Avogadro's hypothesis equal volumes of two gases under the same conditions of temperature and pressure contain

A. Equal number of electrons

B. Equal number of ions

C. Equal number of atoms

D. Equal number of molecules

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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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Equal weights of methane and hydrogen are mixed in an empty container at 25°C. The fraction of the total pressure exerted by methane is

A. 1/2

B. 1/3

C. 1/9

D. 8/9

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If the tetrahedral sites in ccp arrangement of negative ions (Y) were half filled with cation (X), the empirical formula of the compound would be

A. $X_{2} Y$

B. XY

C. $X Y_{2}$

D. $X_{2} Y_{3}$

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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 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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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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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 mean free path of a gas molecule is the distance

A. between the two opposite walls of the container

B. through which the molecules travel in one second

C. through which molecules move between two consecutive collisions

D. travelled by all the molecules divided by the total number of molecules in a particular gas

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Boltzmann constant is given by

A. R

B. R+N

C. R:N

D. R-N

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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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Accepted Answer

A. unit cell

Three dimensional array of points in space is called

Correct Answer :

Show all State of Matter MCQ

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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

Which of the following phrases would be incorrect to use?

Which compound possesses greatest lattice energy?

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

Which of the following will have low heat of fusion?

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

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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)

Which of the following should be most viscous?

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All gases tend to show ideal behaviour

Density of a gas relative to air is 2.3. If the average molar mass of air is 29.08/mol, the molecular mass of the gas will be

The coordination number of each sphere in hcp arrangement is

In a solid atoms A are arranged in ccp array. Atoms B occupy all the octahedral voids and half the tetrahedral voids. The formula of the compound is expected to be

The number of molecules is 4.25 g of ammonia are approximately

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

In the wurtzite structure sulphur atoms have

How many moles of water are present in 180 gm. of water ?

According to Avogadro's hypothesis equal volumes of two gases under the same conditions of temperature and pressure contain

The Van der Waal's equation explains the behaviour of

Equal weights of methane and hydrogen are mixed in an empty container at 25°C. The fraction of the total pressure exerted by methane is

If the tetrahedral sites in ccp arrangement of negative ions (Y) were half filled with cation (X), the empirical formula of the compound would be

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

The relation between molecular wt. and vapour density is

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

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

The mean free path of a gas molecule is the distance

Boltzmann constant is given by

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

Also checkout

Three dimensional array of points in space is called

Correct Answer :

Show all State of Matter MCQ

Related Questions

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

Which of the following phrases would be incorrect to use?

Which compound possesses greatest lattice energy?

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

Which of the following will have low heat of fusion?

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

The critical temperature of a substance is defined as

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

Which of the following should be most viscous?

Volume occupied by 4.4 gift of carbon dioxide is

The number of molecules in 32 gms of oxygen in

All gases tend to show ideal behaviour

Density of a gas relative to air is 2.3. If the average molar mass of air is 29.08/mol, the molecular mass of the gas will be

The coordination number of each sphere in hcp arrangement is

In a solid atoms A are arranged in ccp array. Atoms B occupy all the octahedral voids and half the tetrahedral voids. The formula of the compound is expected to be

The number of molecules is 4.25 g of ammonia are approximately

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

In the wurtzite structure sulphur atoms have

How many moles of water are present in 180 gm. of water ?

According to Avogadro's hypothesis equal volumes of two gases under the same conditions of temperature and pressure contain

The Van der Waal's equation explains the behaviour of

Equal weights of methane and hydrogen are mixed in an empty container at 25°C. The fraction of the total pressure exerted by methane is

If the tetrahedral sites in ccp arrangement of negative ions (Y) were half filled with cation (X), the empirical formula of the compound would be

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

The relation between molecular wt. and vapour density is

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

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

The mean free path of a gas molecule is the distance

Boltzmann constant is given by

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

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

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