Chemistry Questions

Q:

Magnesium oxide (MgO) + Water (H2O) = ?

A) [Mg(OH)] B) [Mg(O2H)2]
C) [Mg2(OH)] D) [Mg(OH)2]
 
Answer & Explanation Answer: D) [Mg(OH)2]

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Q:

NaCl has ______.

A) nonpolar bonds B) polar covalent bonds
C) Metallic bonds D) ionic bonds
 
Answer & Explanation Answer: D) ionic bonds

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Q:

What is the net charge on Calcium fluoride?

A) 1+ B) 0
C) 1­- D) 2­-
 
Answer & Explanation Answer: B) 0

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Q:

What is dehydration?

A) Removal of acid from a molecule B) Removal of base from a molecule
C) Removal of water from a molecule D) Removal of alkali from a molecule
 
Answer & Explanation Answer: C) Removal of water from a molecule

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Q:

What is the reaction between an acid and a base called?

A) Desalination B) Crystallisation
C) Neutralisation D) Sublimation
 
Answer & Explanation Answer: C) Neutralisation

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Q:

Bronze is an alloy of

A) Copper & tin B) Copper & zinc
C) Copper & iron D) Iron & nickel
 
Answer & Explanation Answer: A) Copper & tin

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Q:

Which of the following is the third member of the Dobereiner triad, that also features Lithium and Sodium?

 

A) Potassium B) Boron
C) Barium D) Hydrogen
 
Answer & Explanation Answer: A) Potassium

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Q:

Which is known as carbolic acid?

A) Phenol B) Ethanol
C) Acetic acid D) Oxalic acid
 
Answer & Explanation Answer: A) Phenol

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