Chemistry Questions

Q:

If we take a small amount of washing soda and add approximately 1 mL of dilute hydrochloric acid to it, what will we observe?

A) only neutralisation reaction occurs, no gas is released B) white-coloured precipitate is formed
C) CO2 gas comes out with brisk effervescence D) H2 gas comes out with pop sound
 
Answer & Explanation Answer: C) CO2 gas comes out with brisk effervescence

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Q:

Find the odd one out.

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

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Q:

Which among the following metal is used for galvanization?

A) Zinc B) Copper
C) Iron D) Silver
 
Answer & Explanation Answer: A) Zinc

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Q:

Zeolite is

A) hydrated ferric oxide B)  hydrated sodium aluminium silicate
C)  sodium hexameta phosphate D)  sodium tetra borate
 
Answer & Explanation Answer: B)  hydrated sodium aluminium silicate

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Q:

Covalent Bond is also called _________.

A) Molecular Bond B) Proton Bond
C) Nucleus Bond D) Electron Bond
 
Answer & Explanation Answer: A) Molecular Bond

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Q:

Which method will be employed to test the hardness of water?

A) Boiling B) Distillation
C) Formation of lather with soap D) None of these
 
Answer & Explanation Answer: C) Formation of lather with soap

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Q:

Aromatic hydrocarbons contain at least _____ benzene like ring in their molecules.

A) 4 B) 3
C) 2 D) 1
 
Answer & Explanation Answer: D) 1

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Q:

What chemical is injected into a person's body when an ant bites?

A) Formic Acid B) Acetic Acid
C) Tartaric Acid D) Citric Acid
 
Answer & Explanation Answer: A) Formic Acid

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