set 1 MCQ Questions & Answers Detailed Explanation

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

Questions : These days yellow lamps are frequently used as street light. Which one of the following is used in these lamps?

(a) Neon

(b) Hydrogen

(c) Sodium

(d) Nitrogen

The correct answers to the above question in:

Answer: (c)

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Read more chemistry gk Based General Science Questions and Answers

Question : 1

The chemical name of limestone is

a) Magnesium Chloride

b) Sodium Chloride

c) Calcium Carbonate

d) Sodium Sulphate

Answer: (c)

Question : 2

Calcination is the process of heating the ore

a) in presence of air

b) in a blast furnace

c) in absence of air

d) none of these

Answer: (c)

Question : 3

Mica is a

a) Bad conductor of both heat and electricity

b) Good conductor of heat and electricity both

c) Good conductor of heat and bad conductor of electricity

d) Bad conductor of heat and good conductor of electricity

Answer: (c)

Question : 4

Bauxite is the ore of

a) Aluminium

b) Copper

c) Iron

d) Gold

Answer: (a)

Question : 5

Which of the following is not an ore?

a) Zinc blende

b) Bauxite

c) Malachite

d) Pig iron

Answer: (d)

Pig iron ⟶ It is the most impure form of iron and contains the highest proportion of carbon (2.5–4%).

Rest all are ore.

Malachite ⟶ Cu(OH)2 CuCO3,

Zinc blende ⟶ ZnS, Bauxite ⟶ Al2O3 2H2O

Question : 6

Heaviest metal of the following is made of

a) Uranium

b) Aluminium

c) Copper

d) Silver

Answer: (a)

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