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 Chemistry Questions

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Q:

An element A forms an oxide with formula A3O4. What is the valency of element A?

A) 3 B) 2
C) 1 D) 4
 
Answer & Explanation Answer: D) 4

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Q:

Removal of carbon particles from air involves the principle of

A) Precipitation B) Filteration
C) Electrophoresis D) Sedimentation
 
Answer & Explanation Answer: C) Electrophoresis

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Q:

Which drug is used as a Nonsteroidal anti-inflammatory drug?

A) Risedronate B) Diazepam
C) Folic Acid D) Ibuprofen
 
Answer & Explanation Answer: D) Ibuprofen

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Q:

Which gas is released when water is added to bleaching powder?

A) Oxygen B) Hydrogen
C) Carbon dioxide D) Chlorine
 
Answer & Explanation Answer: D) Chlorine

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Q:

Bauxite is an ore/mineral of

A) Aluminium B) Beryllium
C) Lead D) Tin
 
Answer & Explanation Answer: A) Aluminium

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Q:

Rusting is _____.

A) Electrolysis B) Oxidation
C) Redox reaction (Oxidation and Reduction) D) Reduction
 
Answer & Explanation Answer: C) Redox reaction (Oxidation and Reduction)

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Q:

The property of metals by which they can be beaten into thin sheets is called _______________.

A) ductility B) malleability
C) viscosity D) tensile strength
 
Answer & Explanation Answer: B) malleability

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Q:

LPG is a mixture of _______.

A) methane and butane B) butane and propane
C) methane and propane D) ethane and propane
 
Answer & Explanation Answer: B) butane and propane

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