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Questions

Question (1)

QN007062

Valency of an atom refers to its —

(A) Atomic mass
(B) Combining capacity
(C) Number of neutrons
(D) Number of shells

Correct Answer: B

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Question (2)

QN007063

The valency of hydrogen is —

(A) 0
(B) 1
(C) 2
(D) 8

Correct Answer: B

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Question (3)

QN007064

An atom with electronic configuration 2, 8, 1 has valency —

(A) 0
(B) 1
(C) 7
(D) 8

Correct Answer: B

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Question (4)

QN007065

The valency of oxygen is —

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

Correct Answer: B

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Question (5)

QN007066

Which element has valency zero?

(A) Sodium
(B) Oxygen
(C) Neon
(D) Magnesium

Correct Answer: C

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Question (6)

QN007067

An atom has electronic configuration 2, 8, 7. Its valency is —

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

Correct Answer: A

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Question (7)

QN007068

Valency is determined by the number of electrons in the —

(A) Nucleus
(B) Innermost shell
(C) Valence shell
(D) Proton

Correct Answer: C

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Question (8)

QN007069

The valency of nitrogen with configuration 2, 5 is —

(A) 2
(B) 3
(C) 5
(D) 8

Correct Answer: B

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Question (9)

QN007070

Which of the following has valency 2?

(A) Sodium
(B) Magnesium
(C) Aluminium
(D) Chlorine

Correct Answer: B

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Question (10)

QN007071

The valency of chlorine is —

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

Correct Answer: A

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