A non-metal which reacts with concentrated sulphuric acid to form two gases which turn lime water milky is ............... . (a) Sulphur (b) Carbon (c) Oxygen (d) Nitrogen

Rewrite the following statements by adding the correct word as shown in the example: Example: Given Statement: Ammonia changes moist red litmus to blue. Correct Statement: Aqueous ammonia changes moist red litmus to blue. (a) Sulphuric acid acts as a dehydrating agent. (b) Ammonia reacts with chlorine to give ammonium chloride and nitrogen.

The following table is related to an Industrial process of an acid. Name of the process Reactant Catalyst Final product (a) SO2 + O2 (b) (c) Identify (a), (b) and (c).

Differentiate between the following pairs based on the criteria given: (a) Sulphuric acid and Nitric acid (using barium chloride solution) (b) Unsaturated and Saturated hydrocarbons (type of bond present)

Hydrogen chloride gas is prepared in the laboratory by the action of concentrated sulphuric acid on sodium chloride. (a) Write the balanced equation for the reaction with suitable conditions. (b) Name the method of collection of hydrogen chloride gas. (c) State the property of sulphuric acid which makes it suitable for the preparation of hydrogen chloride.

In the reaction given below sulphuric acid acts as a/an: S + 2H2SO4 ⟶ 3SO2 + 2H2O (a) Non-volatile acid (b) Dibasic acid (c) Oxidising agent (d) Reducing agent

Which gas decolourises potassium permanganate (KMnO4) solution? (a) Sulphur dioxide (b) Ammonia (c) Hydrogen chloride (d) Carbon dioxide

Assertion (A): In the Contact Process SO3 gas is not directly dissolved in water to obtain sulphuric acid. Reason (R): Dense fog or misty droplets of sulphuric acid are formed which is difficult to condense. (a) Both A and R are true and R is the correct explanation of A. (b) Both A and R are true but R is not the correct explanation of A. (c) A is true but R is false. (d) A is false but R is true.

Differentiate between the following pairs based on the criteria given in the brackets: (a) Cane sugar and hydrated copper sulphate [using concentrated H2SO4] (b) Sulphuric acid and hydrochloric acid [type of salts formed]

During the manufacture of sulphuric acid, a chemist collected the gas formed after catalytic oxidation of sulphur dioxide. (a) Name the gas collected. (b) Which acid is formed when the gas collected by the chemist is dissolved directly in water? (c) Why should we not dissolve this gas directly in water?

Complete and balance the following equations: (a) C2H4Br2 + KOH (alcoholic) ⟶ (b) NH3 (excess) + Cl2 ⟶ (c)

Give balanced equations for the following: (a) Action of dilute hydrochloric acid on ammonium carbonate. (b) Oxidation of sulphur with hot concentrated nitric acid. (c) Reaction of concentrated sulphuric acid with carbon.