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Question (11)

QN007072

Noble gases generally have valency —

(A) 1
(B) 2
(C) 4
(D) 0

Correct Answer: D

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Question (12)

QN007073

An atom with electronic configuration 2, 8, 2 will have valency —

(A) 1
(B) 2
(C) 6
(D) 8

Correct Answer: B

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Question (13)

QN007074

The valency of carbon is —

(A) 2
(B) 3
(C) 4
(D) 6

Correct Answer: C

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Question (14)

QN007075

Which electronic configuration corresponds to valency 3?

(A) 2, 8, 1
(B) 2, 8, 2
(C) 2, 8, 3
(D) 2, 8, 7

Correct Answer: C

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Question (15)

QN007076

The outermost shell electrons involved in valency are called —

(A) Core electrons
(B) Free electrons
(C) Valence electrons
(D) Paired electrons

Correct Answer: C

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Question (16)

QN007077

The valency of fluorine is —

(A) 0
(B) 1
(C) 6
(D) 7

Correct Answer: B

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Question (17)

QN007078

Which atom has valency 4?

(A) Oxygen
(B) Nitrogen
(C) Carbon
(D) Sodium

Correct Answer: C

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Question (18)

QN007079

An atom with valence shell containing 6 electrons has valency —

(A) 2
(B) 4
(C) 6
(D) 8

Correct Answer: A

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Question (19)

QN007080

Valency of an element indicates its tendency to —

(A) Lose or gain electrons
(B) Increase mass
(C) Change nucleus
(D) Increase neutrons

Correct Answer: A

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Question (20)

QN007081

The valency of sodium is —

(A) 0
(B) 1
(C) 2
(D) 7

Correct Answer: B

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