Chemistry Questions

Q:

Which one of the following is a good electrical conductor?

A) Graphite B) Diamond
C) Peat D) Charcoal
 
Answer & Explanation Answer: A) Graphite

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Q:

According to Dalton’s Atomic Theory, the smallest indivisible particles of matter is called ______.

A) molecule B) atom
C) compound D) element
 
Answer & Explanation Answer: B) atom

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0 1403
Q:

Find the odd one out.

A) NaCl B) Na2CO3
C) H2O D) He
 
Answer & Explanation Answer: D) He

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Q:

The molecular formula of Propane is

A) C2H6 B) C4H10
C) C3H8 D) CH4
 
Answer & Explanation Answer: C) C3H8

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0 1402
Q:

A change in which no new substances are formed is called _____________.

A) Physical Change B) Chemical Change
C) Rusting D) Galvanisation
 
Answer & Explanation Answer: A) Physical Change

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Q:

Which of the following elements has the lowest melting point?

A) Titanium B) Sulphur
C) Argon D) Zinc
 
Answer & Explanation Answer: C) Argon

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Q:

Which of the following is most important for absorption of heat radiated from the Sun as well as from the Earth?

A) Carbon dioxide B) Oxygen
C) Carbon monoxide D) Nitrogen
 
Answer & Explanation Answer: A) Carbon dioxide

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0 1397
Q:

Soft drinks contain:

A) Oxalic acid B) Tartaric acid
C) Carbonic acid D) Citric acid
 
Answer & Explanation Answer: C) Carbonic acid

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