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 Chemistry Questions

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Q:

The chemical formula of Ammonia is _____ .

A) NH B) NH1
C) NH2 D) NH3
 
Answer & Explanation Answer: D) NH3

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Q:

The Chemical formula of Ammonium nitrate is ___________.

A) (NH2)2NO3 B) NH4NO3
C) NH4(NO3)2 D) NH2NO3
 
Answer & Explanation Answer: B) NH4NO3

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Q:

Which of the following bonds are weakest in nature?

A) Single bond B) Double bond
C) Triple bond D) Hydrogen bond
 
Answer & Explanation Answer: D) Hydrogen bond

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Q:

NaHCO3 is chemical formula for ___________.

A) Borax B) Vinegar
C) Lime D) Baking soda
 
Answer & Explanation Answer: D) Baking soda

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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:

______ decreases the rate of setting of cement.

A) Alumina B) Silica
C) Gypsum D) Magnesium oxide
 
Answer & Explanation Answer: C) Gypsum

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Q:

Trinitrotoluene is

A) used to melt metals B) used to fuse two metals
C) used as an abrasive D) used as an explosive
 
Answer & Explanation Answer: D) used as an explosive

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Q:

The process of depositing a layer of any desired metal on another material by means of electricity is called ___________.

A) Electroplating B) Galvanisation
C) Rusting D) Crystallisation
 
Answer & Explanation Answer: A) Electroplating

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