Chemistry Questions

Q:

The gases used in different types of welding would include

A) Acetylene B) Oxygen
C) Oxygen and Acetylene D) Nitrogen, Oxygen and Acetylene
 
Answer & Explanation Answer: C) Oxygen and Acetylene

Explanation:

Oxygen and Acetylene are the gases used in different types of welding.

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Q:

Find the odd one out.

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

Explanation:
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Q:

Which of the following is an example of thermosetting plastic?

A) Bakelite B) PVC
C) Polyethylene D) No option is correct.
 
Answer & Explanation Answer: A) Bakelite

Explanation:
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Q:

........... is not a sub atomic particle of an atom.

A) Neutron B) Electron
C) Xenon D) Proton
 
Answer & Explanation Answer: C) Xenon

Explanation:
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Q:

Which of the following is a greenhouse gas or a gas which can deplete the ozone layer?

A) BBr3 B) NH3
C) CH2N2 D) CCl2F2
 
Answer & Explanation Answer: D) CCl2F2

Explanation:
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Q:

Benzene is ______ in ethyl alcohol.

A) soluble B) solute
C) insoluble D) insolate
 
Answer & Explanation Answer: C) insoluble

Explanation:
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Q:

What is the process of rust forming on iron called?

A) Rusting B) Crystallisation
C) Shovel D) Spade
 
Answer & Explanation Answer: A) Rusting

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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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