set 4 MCQ Questions & Answers Detailed Explanation

MOST IMPORTANT general science mcq - 4 EXERCISES

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The following question based on metals, non metals, minerals, ores, properties, uses topic of general science mcq

Questions : Bauxite is an ore of which of the following metals?

(a) Copper

(b) Aluminium

(c) Iron

(d) Silver

The correct answers to the above question in:

Answer: (b)

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Question : 1

Which of the following metals constitutes the alloy magnalium –

a) Al, Mg

b) Al, Cu

c) Al, Fe

d) Al, Mn

Answer: (a)

Magnalium is a mixture of 90% Al and 10% Mg.

Question : 2

Which of the following is an element which never exhibits positive oxidation state in any of its compounds?

a) Chlorine

b) Fluorine

c) Oxygen

d) Carbon

Answer: (b)

Question : 3

The most abundant metal in the earth’s crust is -

a) aluminium

b) iron

c) copper

d) mercury

Answer: (a)

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