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

Question

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

A. 4

B. 6

C. 8

D. 12

Correct Answer :

B. 6

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

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Vapour density of a gas is 35.5. The volume occupied by 3.55 gm of the gas at NTPis

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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

Discuss this answer

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

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The relation between molecular wt. and vapour density is

Discuss this answer

The Van der Waal's equation explains the behaviour of

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The vapour density of completely dissociated sociated $N H_{4} C L$ would be

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

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An element has atomic weight 24 and equivalent weight 11.9. Its valency is

A. 1

B. 2

C. 3

D. 4

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All gases tend to show ideal behaviour

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A gas or vapour may be liquefied only at a temperature at or

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The molecular velocity of any gas is

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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. $X Y_{2}$

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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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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 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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Which of the following should be most viscous?

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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)

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The best electrical conductor of the following is

B. Si(s)

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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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Gases deviate from the ideal behaviour because their molecules

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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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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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20 litres of hydrogen gas weighs about

A. 1.8 g

B. 3.6 g

C. 224 g

D. 12.2 g

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In what ratio by mass carbon monoxide and nitrogen should be mixed so that partial pressure exerted by each gas is same?

Discuss this answer

The electrical conductivity of metals is of the order of

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In fluorite structure coordination number of calcium ions is

A. 4

B. 6

C. 8

D. 3

Discuss this answer

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

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

Discuss this answer

Answer 1

A. the quantity of gas

Answer 2

B. the quality of gas

Answer 3

C. type values of T and P

Answer 4

D. None of these

Answer 5

A. 1.12 litres

Answer 6

B. 2.24 litres

Answer 7

C. 22.4 litres

Answer 8

D. 11.2 litres

Answer 9

A. 6 and 4

Answer 10

B. 6 and 6

Answer 11

C. 4 and 4

Answer 12

D. 8 and 4

Answer 13

A. Molecular wt. =

\frac{2}{3}

V.D.

Answer 14

B. Molecular wt. =

\frac{1}{3}

V.D.

Answer 15

C. Molecular wt. = V.D.

Answer 16

D. Molecualr wt = 2 x V.D.

Answer 17

A. ideal gases

Answer 18

B. real gases

Answer 19

C. vapours

Answer 20

D. non-real gases

Answer 21

A. Determined by the amount of solid

N H_{4} C L

used in the experiment

Answer 22

B. Triple to that of

N H_{4} C L

Answer 23

C. Half of that

N H_{4} C L

Answer 24

D. Slightly less than half of that of

N H_{4} C L

Answer 25

A. 6 and 6

Answer 26

B. 4 and 4

Answer 27

C. 1 and 1

Answer 28

D. 6 and 4

Answer 29

A. at low temperature and low pressure

Answer 30

B. at high temperature and high pressure

Answer 31

C. at high temperature and low pressure

Answer 32

D. at low temperature and high pressure

Answer 33

A. below the critical temperature

Answer 34

B. above the critical temperature

Answer 35

C. above the normal boiling point

Answer 36

D. at any temperature

Answer 37

A. proportional to absolute temperature

Answer 38

B. proportional to the square root of absolute temperature

Answer 39

C. independent of temperature

Answer 40

D. proportional to die square of absolute temperature

Answer 41

D.

X_{2} Y_{3}

Answer 42

C. 243.67°C

Answer 43

A.

C H_{3} O H

Answer 44

B.

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

Answer 45

C.

C H_{3} O C H_{3}

Answer 46

D.

H O C H_{2} C H_{2} O H

Answer 47

A. 10 gms of calcium

Answer 48

B. 20 gms of carbon

Answer 49

C. 20 gms of calcium

Answer 50

D. 12 gms of carbon

Answer 51

A.

C O_{2}

(s)

Answer 52

C. NaCl (fused)

Answer 53

D.

B r_{2}

(I)

Answer 54

A. Equal number of electrons

Answer 55

B. Equal number of ions

Answer 56

C. Equal number of atoms

Answer 57

D. Equal number of molecules

Answer 58

B.

C a F_{2}

Answer 59

C. Diamond

Answer 60

A. possess negligible volume

Answer 61

B. have forces of attraction between them

Answer 62

C. are polyatomic

Answer 63

D. are not attracted to one another

Answer 64

A.

m (N_{2}) = m (C O)

Answer 65

B.

m (N_{2}) = 2 m (C O)

Answer 66

C.

m (N_{2}) = 0.5 m (C O)

Answer 67

D. None of these

Answer 68

A.

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

Answer 69

B.

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

Answer 70

C.

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

Answer 71

D.

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

Answer 72

A. become half of 740 mm

Answer 73

B. remain unchanged

Answer 74

C. become 1/9 of 740 mm

Answer 75

D. become double of 740 mm

Answer 76

A. be enlarged

Answer 77

B. be collapse

Answer 78

C. remain unchanged in size

Answer 79

D. have half its volume of the gas

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

Correct Answer :

Show all State of Matter MCQ

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

Correct Answer :

Show all State of Matter MCQ

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