Chemistry MCQs for 1st-year class

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

1. : Ethanol is a biofuel and commonly known as?
(A) Oxygen neutral
(B) Nitrogen neutral
(C) Carbon neutral
(D) All of them

2. : Is sodium metal soft due to its?
(A) Strong metallic bond
(B) Weak metallic bond
(C) Due to hydrogen in it
(D) Small size

3. : Propane-2-ol will get oxidized to give which of the followings?
(A) Ketone
(B) Aldehyde
(C) Alcohol
(D) Hydrogen

4. : Elements which have properties of metals and non-metals are called?
(A) Crystalline
(B) Metalloids
(C) Amorphous
(D) None of above

5. : 2-methyl-2-propane-2-ol is an example of?
(A) Tertiary alcohol
(B) Primary alcohol
(C) Secondary alcohol
(D) A and B

6. : As the size of atom increases down the group, electropositivity is?
(A) Remains same
(B) Decreases
(C) Increases
(D) None of above

7. : Organic molecules with similar relative molecular mass have alcohols (CnH2n+1OH) bearing high?
(A) Polarity
(B) Volatility
(C) Boiling point
(D) Sublimation point

8. : Bromine is a non-metal in which of the following states?
(A) Solid-state
(B) Gaseous state
(C) Plasma state
(D) Liquid state

9. : CH3OH is called
(A) Methanol
(B) Methane
(C) Carbon hydroxide
(D) Methyl

10. : As compared to beryllium, magnesium is?
(A) More electropositive
(B) Large in size
(C) Less electropositive
(D) Both A and B