Q1. Assertion: Hydrogen chloride gas is acidic in nature.
Reason: HCl dissolves in water to give H⁺ ions.

Q2. Assertion: Calcium hydroxide is used to remove acidity from soil.
Reason: It is a basic substance.

Q3. Assertion: Sodium chloride is an ionic compound.
Reason: It is formed by transfer of electrons from sodium to chlorine.

Q4. Assertion: Alcohols are classified as primary, secondary, and tertiary.
Reason: Classification depends on the number of -OH groups attached.

Q5. Assertion: Magnesium reacts with steam to give magnesium oxide and hydrogen.
Reason: Reaction occurs with water vapor at high temperature.

Q6. Assertion: In electrolytic solution, cations move towards cathode.
Reason: Cathode is negatively charged.

Q7. Assertion: Carbonates decompose on heating to give oxides and CO₂.
Reason: Carbonates are thermally unstable.

Q8. Assertion: Soap molecules have hydrophobic and hydrophilic ends.
Reason: Soap helps in emulsifying oils and fats.

Q9. Assertion: Metals are good conductors of electricity.
Reason: Metals have free delocalized electrons.

Q10. Assertion: Acids react with bases to form salt and water.
Reason: Neutralization reaction occurs.