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Question (41)

QN006902

Which pair is incorrectly matched?

(A) Iron – Fe
(B) Mercury – Hg
(C) Potassium – Pt
(D) Sodium – Na

Correct Answer: C

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Question (42)

QN006903

The correct symbol for silicon is —

(A) SI
(B) Si
(C) si
(D) sI

Correct Answer: B

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Question (43)

QN006904

Which of the following symbols is derived from a language other than English?

(A) H
(B) O
(C) Na
(D) C

Correct Answer: C

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Question (44)

QN006905

The symbol ‘F’ stands for —

(A) Fluorine
(B) Francium
(C) Fermium
(D) Fluoride

Correct Answer: A

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Question (45)

QN006906

Which of the following is not an element symbol?

(A) K
(B) CA
(C) Zn
(D) Ne

Correct Answer: B

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Question (46)

QN006907

The symbol ‘Ne’ represents —

(A) Nitrogen
(B) Neon
(C) Nickel
(D) Neptunium

Correct Answer: B

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Question (47)

QN006908

Which scientist proposed the modern system of element symbols?

(A) Rutherford
(B) Dalton
(C) Berzelius
(D) Thomson

Correct Answer: C

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Question (48)

QN006909

The symbol ‘Ba’ stands for —

(A) Boron
(B) Barium
(C) Beryllium
(D) Bromine

Correct Answer: B

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Question (49)

QN006910

Which of the following symbols is correctly written according to international rules?

(A) hE
(B) FE
(C) Na
(D) au

Correct Answer: C

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Question (50)

QN006911

The use of standard symbols for elements helps scientists because —

(A) Different countries use different names
(B) Symbols are shorter and universally accepted
(C) Symbols increase atomic mass
(D) Symbols replace experiments

Correct Answer: B

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