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

Question

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

A. 6

B. 8

C. 12

D. 4

Correct Answer :

C. 12

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

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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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The weight of 11.2 litres of $C O_{2}$ at S.T.P. would be

A. 22 gms

B. 66 gms

C. 11 gms

D. 16 gms

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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

Discuss this answer

In anti-fluorite structure the negative ions

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The mean free path of a gas molecule is the distance

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

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The relation between molecular wt. and vapour density is

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Volume occupied by 1 gm equivalent of oxygen at NTP is

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The number of molecules is 4.25 g of ammonia are approximately

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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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When an ideal gas undergoes unrestricted expansion, no cooling occurs because the molecules

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The number of molecules in 32 gms of oxygen in

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In the process of sublimation, the substance transforms directly

Discuss this answer

22.4 litre of any gas at N.T.P. will contain

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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?

B. $B r_{2}$

D. $O_{2}$

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The number of molecules in 4.25 gm of ammonia are approximately

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The vapour density of ozone would be

A. 72

B. 8

C. 48

D. 24

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

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

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Which of the following is an amorphous solid?

A. NaCl

D. Glass

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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. $A B_{5}$

D. $A B$

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Correct gas equation is

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For a given gas at temperature T and pressure P the root mean square velocity (RMS) is C; then at temperature T and pressure 3P the RMS is

B. 3C

C. C/3

D. $C^{3}$

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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

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Indicate the most viscous liquid of the following

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

C. atoms

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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

Discuss this answer

An open vessel at 37°C is heated until 3/5 of the air in it has been expelled. Assuming that the volume of the vessel remains constant the temperature to which the vessel is heated is

A. 502°C

B. 502 K

D. 925C

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

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Answer 1

A. Low temperature and high pressure

Answer 2

B. High temperature and low pressure

Answer 3

C. High temperature and low pressure

Answer 4

D. None of these

Answer 5

A. NaCl type

Answer 6

B. CsCl type

Answer 7

C. ZnS type

Answer 8

D. Boron oxide type

Answer 9

A. occupy tetrahedral voids

Answer 10

B. occupy octahedral voids

Answer 11

C. are arranged in ccp

Answer 12

D. are arranged in hcp

Answer 13

A. between the two opposite walls of the container

Answer 14

B. through which the molecules travel in one second

Answer 15

C. through which molecules move between two consecutive collisions

Answer 16

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

Answer 17

A. vapour pressure

Answer 18

B. density

Answer 19

C.

∆ H_{v a p}

Answer 20

D. surface tension

Answer 21

A. Molecular wt. =

\frac{2}{3}

V.D.

Answer 22

B. Molecular wt. =

\frac{1}{3}

V.D.

Answer 23

C. Molecular wt. = V.D.

Answer 24

D. Molecualr wt = 2 x V.D.

Answer 25

A. 22.4 litres

Answer 26

B. 2.24 litres

Answer 27

C. 5.6 litres

Answer 28

D. 11.2 litres

Answer 29

A. 3.5 x

^{10^{23}}

Answer 30

B. 2.5 x

^{10^{23}}

Answer 31

C. 1.5 x

^{10^{23}}

Answer 32

D. 0.5 x

^{10^{23}}

Answer 33

A. are above inversion temperature

Answer 34

B. exert no attractive force on each other

Answer 35

C. do work equal to loss in kinetic energy

Answer 36

D. collide without loss of energy

Answer 37

A. 6.02 x

^{10^{10}}

Answer 38

B. 3.2 x

^{10^{23}}

Answer 39

C. 6.02 x

^{10^{22}}

Answer 40

D. 32 x

^{10^{10}}

Answer 41

A. from the solid state to the liquid state

Answer 42

B. from the liquid state to gaseous state

Answer 43

C. from the solid state to gaseous state

Answer 44

D. from the liquid state to solid state

Answer 45

A. One gram equivalent

Answer 46

B. One gram atomic weight

Answer 47

C. One gram atom

Answer 48

D. One gram molecule

Answer 49

A.

N H_{3}

,

Answer 50

C.

C C l_{4}

Answer 51

A.

0.5 \times 10^{23}

Answer 52

B.

1.5 \times 10^{23}

Answer 53

C.

2.5 \times 10^{23}

Answer 54

D.

3.5 \times 10^{23}

Answer 55

A. 12 x

^{10^{23}}

approximately

Answer 56

B. 3 x

^{10^{10}}

approximately

Answer 57

C. 6 x

^{10^{10}}

approximately

Answer 58

D. 3 x

^{10^{23}}

approximately

Answer 59

A. Equal number of electrons

Answer 60

B. Equal number of ions

Answer 61

C. Equal number of atoms

Answer 62

D. Equal number of molecules

Answer 63

B.

C a F_{2}

Answer 64

C. Diamond

Answer 65

B.

A_{5} B_{2}

Answer 66

C.

A_{2} B_{5}

Answer 67

A.

\frac{P_{1} V_{1}}{P_{2} V_{2}} = \frac{T_{1}}{T_{2}}

Answer 68

B.

\frac{V_{1} T_{2}}{P_{1}} = \frac{P_{2} T_{1}}{T_{2}}

Answer 69

C.

\frac{P_{1} T_{1}}{V_{1}} = \frac{P_{2} T_{2}}{V_{2}}

Answer 70

D.

\frac{V_{1} V_{2}}{T_{1} T_{2}} = P_{1} P_{2}

Answer 71

A. Unchanged

Answer 72

A. 12 litre

Answer 73

B. 11.2 litres

Answer 74

C. 2.24 litres

Answer 75

D. 22.4 litres

Answer 76

A. propanol-2

Answer 77

B. 1.2, ethandiol

Answer 78

C. 1.2,3 propentriol

Answer 79

D. ethanol

Answer 80

A. volumes

Answer 81

B. molecules

Answer 82

D. temperature

Answer 83

A. become half of 740 mm

Answer 84

B. remain unchanged

Answer 85

C. become 1/9 of 740 mm

Answer 86

D. become double of 740 mm

Answer 87

C. 243.67°C

Answer 88

A. face centred cubic

Answer 89

B. hexagonal close packed

Answer 90

C. body centred cubic

Answer 91

D. simple cubic

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

Correct Answer :

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

The weight of 11.2 litres of $C O_{2}$ at S.T.P. would be

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

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Correct Answer :

Show all State of Matter MCQ

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

The weight of 11.2 litres of CO2 at S.T.P. would be

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

In anti-fluorite structure the negative ions

The mean free path of a gas molecule is the distance

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

The relation between molecular wt. and vapour density is

Volume occupied by 1 gm equivalent of oxygen at NTP is

The number of molecules is 4.25 g of ammonia are approximately

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Which of the following is an amorphous solid?

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