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

Question

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. $X Y_{2}$

Correct Answer :

B. XY

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

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The weight of 22.4 litres of any gas at N.T.P. represent its

Discuss this answer

Kinetic theory of gases postulates :

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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. $A B_{3}$

D. $A_{2} B$

Discuss this answer

22.4 litres of $S O_{2}$ at 27.3°C and 1 atmosphere pressure shall weigh

A. 32 g

B. 16 g

C. 44.8 g

D. 48.5 g

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The number of N2 molecules present in 28 nitrogen is

A. 2 x 10

Discuss this answer

The mean free path of a gas molecule is the distance

Discuss this answer

The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure:

Discuss this answer

Volume occupied by 1 gm equivalent of oxygen at NTP is

Discuss this answer

In fluorite structure coordination number of calcium ions is

A. 4

B. 6

C. 8

D. 3

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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

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

Discuss this answer

If the temperature and pressure remain unchanged the volume of $O_{2}$ obtained by the decomposition of a certain volume of $S O_{2}$ will be

Discuss this answer

The electrical conductivity of metals is of the order of

Discuss this answer

The critical temperature of a substance is defined as

Discuss this answer

Match box has the symmetry of which of the following systems?

A. Cubic

Discuss this answer

Four 1 litre flasks are separately filled with the gases hydrogen, helium, oxygen and ozone at the same temperature and pressure, the ratio of total number of atoms of these gases present in the different flasks would be

Discuss this answer

One mole of gas is defined as

Discuss this answer

The relation between molecular wt. and vapour density is

Discuss this answer

Which compound possesses greatest lattice energy?

A. LiF

B. NaF

C. KF

D. CsF

Discuss this answer

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

Discuss this answer

Three dimensional array of points in space is called

Discuss this answer

All gases tend to show ideal behaviour

Discuss this answer

Kinetic gas equation is, PV =...

A. nRT

Discuss this answer

Boltzmann constant is given by

A. R

B. R+N

C. R:N

D. R-N

Discuss this answer

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

Discuss this answer

Indicate the most volatile liquid of the following:

C. $H_{2} O$

Discuss this answer

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

Discuss this answer

In a close packed arrangement of N spheres, the number of octahedral holes are

A. N

B. 2N

C. 4N

D. 8N

Discuss this answer

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. $A B$

Discuss this answer

Answer 1

D.

X_{2} Y_{3}

Answer 2

A. 760 torr

Answer 3

B. 380 torr

Answer 4

C. 197 torr

Answer 5

D. None of these

Answer 6

A. gm atomic weight

Answer 7

B. gm molecular weight

Answer 8

C. gm equivalent weight

Answer 9

D. None of these

Answer 10

A. The molecules in a gas are in stationary state

Answer 11

B. The molecules in a gas exert appreciable attraction on each other

Answer 12

C. The molecules move in a random motion with widely different velocities

Answer 13

D. The molecules in a gas collide against each other as well as the wall of the container, but do not change their direction of motion

Answer 14

C.

A_{2} B_{3}

Answer 15

B. 6 x

^{10^{22}}

Answer 16

C. 6 x

^{10^{23}}

approximately

Answer 17

D. 5 x

^{10^{30}}

approximately

Answer 18

A. between the two opposite walls of the container

Answer 19

B. through which the molecules travel in one second

Answer 20

C. through which molecules move between two consecutive collisions

Answer 21

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

Answer 22

A. critical temperature

Answer 23

B. Boyle's temperature

Answer 24

C. inversion temperature

Answer 25

D. reduced temperature

Answer 26

A. 22.4 litres

Answer 27

B. 2.24 litres

Answer 28

C. 5.6 litres

Answer 29

D. 11.2 litres

Answer 30

A. NaCl type

Answer 31

B. CsCl type

Answer 32

C. ZnS type

Answer 33

D. Boron oxide type

Answer 34

A. Victor Meyer's method

Answer 35

B. Dumas' method

Answer 36

C. Cannizaro's method

Answer 37

D. None of these

Answer 38

A. Triple the volume of

S O_{2}

Answer 39

B. Half the volume of

S O_{2}

Answer 40

C. Equal to the volume of

S O_{2}

Answer 41

D. One third the volume of

S O_{2}

Answer 42

A.

10^{12} o h m^{- 1} c m^{- 1}

Answer 43

B.

10^{8} o h m^{- 1} c m^{- 1}

Answer 44

C.

10^{2} o h m^{- 1} c m^{- 1}

Answer 45

D.

10^{- 6} o h m^{- 1} c m^{- 1}

Answer 46

A. the temperature above which the substance decomposes

Answer 47

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

Answer 48

C. melting point of the substance

Answer 49

D. boiling point of the substanc

Answer 50

B. Orthorhombic

Answer 51

C. Tetragonal

Answer 52

D. Monoclinic

Answer 53

A. 3:2:2:1

Answer 54

B. 2:1:2:3

Answer 55

C. 1:2:2:3

Answer 56

D. 1:1:1:1

Answer 57

A. The number of molecules in 22.4 litres of gas at S.T.P

Answer 58

B. The number of molecules contained | in 6 grams of 12 C isotope

Answer 59

C. The number of molecules in one formula weight of gas

Answer 60

D. The number of molecules in litre of gas

Answer 61

A. Molecular wt. =

\frac{2}{3}

V.D.

Answer 62

B. Molecular wt. =

\frac{1}{3}

V.D.

Answer 63

C. Molecular wt. = V.D.

Answer 64

D. Molecualr wt = 2 x V.D.

Answer 65

A. 29 gm/mole

Answer 66

B. 66.7 gm/mole

Answer 67

C. 12.67 gm/mole

Answer 68

D. 25.22 gm/mole

Answer 69

A. unit cell

Answer 70

B. crystal lattice

Answer 71

C. micro-crystal

Answer 72

D. None of these

Answer 73

A. at low temperature and low pressure

Answer 74

B. at high temperature and high pressure

Answer 75

C. at high temperature and low pressure

Answer 76

D. at low temperature and high pressure

Answer 77

B.

\frac{3}{3}

RT

Answer 78

C.

m n^{1} c^{2}

Answer 79

D.

\frac{1}{3} m n c^{2}

Answer 80

C. 0.526 atm

Answer 81

D. 52.6 atm

Answer 82

A.

C H_{3} O H

Answer 83

B.

C H_{3} O C H_{3}

Answer 84

D.

C H_{3} C H_{2} O C H_{2} C H_{3}

Answer 85

B.

A_{5} B_{2}

Answer 86

C.

A_{2} B_{5}

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

Correct Answer :

Show all State of Matter MCQ

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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

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Show all State of Matter MCQ

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The weight of 22.4 litres of any gas at N.T.P. represent its

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The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure:

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Match box has the symmetry of which of the following systems?

Four 1 litre flasks are separately filled with the gases hydrogen, helium, oxygen and ozone at the same temperature and pressure, the ratio of total number of atoms of these gases present in the different flasks would be

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The relation between molecular wt. and vapour density is

Which compound possesses greatest lattice energy?

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

Three dimensional array of points in space is called

All gases tend to show ideal behaviour

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