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Maharashtra Board Class 8 Chemical Change and Chemical Bond MCQ

Maharashtra Board Class 8 Chemical Change and Chemical Bond MCQ

 

Elevate your Class 8 Chemistry understanding with Maharashtra Board’s Class 8  Chemical Change and Chemical Bond MCQs.

 

Which of the following represents a chemical change?
a. Melting of ice
b. Boiling of water
c. Ripening of mango
d. Darkening of a cut potato

Answer: c. Ripening of mango

 

What is the product formed when baking soda is added to lemon juice?
a. Oxygen
b. Carbon dioxide
c. Water
d. Hydrogen

Answer: b. Carbon dioxide

 

What is the chemical equation for the combustion of carbon in the presence of oxygen?
a. C + O2 → CO
b. CO2 + H2O → C + O2
c. C + O2 → CO2
d. H2O + CO2 → C

Answer: c. C + O2 → CO2

 

In the chemical equation for cleaning Shahabad tile with hydrochloric acid, what is the product that gets washed away with water?
a. Calcium carbonate
b. Calcium chloride
c. Carbon dioxide
d. Water

Answer: b. Calcium chloride

 

What type of bond is formed in the compound sodium chloride (NaCl)?
a. Covalent bond
b. Metallic bond
c. Ionic bond
d. Hydrogen bond

Answer: c. Ionic bond

 

What is the charge on a sodium ion (Na+)?
a. +1
b. -1
c. 0
d. +2

Answer: a. +1

 

How many electrons are shared in one covalent bond?
a. 1
b. 2
c. 3
d. 4

Answer: b. 2

 

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