Chemistry MCQs for 9th class

By: Prof. Dr. Fazal Rehman | Last updated: May 23, 2025

1. : Fuel gasohol is a mixture of
(A) Methanol
(B) Petrol
(C) Ethanol
(D) Both B and C

2. : Metals difficult to oxidize are called
(A) Noble metals
(B) Strong metals
(C) Weak metals
(D) None of above

3. : Methylated spirit is used by some people instead of alcohol and they end up getting
(A) Death
(B) Blindness
(C) AIDS
(D) Both A and B

4. : On contact with oxygen, rubidium forms
(A) Normal oxide
(B) Superoxide
(C) Peroxide
(D) None of above

5. : Alcohols react with oxygen to form
(A) Carbon monoxide
(B) Hydrogen
(C) Carbon dioxide
(D) Carbon trioxide

6. : Most metallic among the following is
(A) Na
(B) Al
(C) K
(D) Ca

7. : Brazil has fewer oil reserves; that’s why they grow a lot of sugar cane to produce
(A) Ethanol
(B) Alcohol
(C) Glucose
(D) Alkene

8. : As we move across a period, electronegativity
(A) Decreases
(B) Becomes zero
(C) Remains same
(D) Increases

9. : Organic molecules containing hydroxyl group are called
(A) Esters
(B) Ethane
(C) Aldehydes
(D) Alcohols

10. : As we move across the period from left to right, the reactivity of metals with oxygen
(A) Remains same
(B) Increases
(C) Decreases
(D) Sometimes increase sometimes decreased