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 Chemistry Questions

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Q:

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

A) B2H6 B) Ne
C) C6H14 D) O3
 
Answer & Explanation Answer: D) O3

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Q:

Isotones have always ______

A) Same number of protons B) Same atomic number
C) Same number of neutron D) Same number of proton and same numbe of neutron
 
Answer & Explanation Answer: C) Same number of neutron

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Q:

The strongest interactions between molecules of hydrogen chloride are

A) dipole-dipole interactions B) hydrogen bonds
C) covalent bonds D) ionic bonds
 
Answer & Explanation Answer: A) dipole-dipole interactions

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Q:

What is the relative molecular mass of water?

A) 8 u B) 9 u
C) 16 u D) 18 u
 
Answer & Explanation Answer: D) 18 u

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Q:

Which among the following is not an example of emulsion?

A) Chocolate-Milk B) Butter
C) Whipped Cream D) Curd
 
Answer & Explanation Answer: D) Curd

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Q:

What are Aldehydes ?

A) Mild oxidising agents B) Strong oxidising agents
C) Strong reducing agents D) Mild reducing agents
 
Answer & Explanation Answer: C) Strong reducing agents

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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:

What is the process of melting also called?

A) Fusion B) Galvanisation
C) Crystallisation D) Evaporation
 
Answer & Explanation Answer: A) Fusion

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