MCQs on Chlorine Gas

MCQs on Chlorine Gas

1. Which among the following is the strongest oxidising agent?

(a) F₂

(b) I₂

(c) Br₂

(d) Cl₂

Answer: (a)

2. Calcium chlorite has the molecular formula

(a) Ca(ClO₄)₂

(b) Ca(ClO₃)₂

(c) CaClO₂

(d) Ca(ClO₂)₂

Answer: (d)

3. Four lone pairs of electrons are present in

(a) O

(b) He

(c) Cl^–

(d) HI

Answer: (c)

4. Which of the following will most readily form an anion?

(a) Alkali metals

(b) Halogens

(c) Nitrogen family

(d) Oxygen family

Answer: (b)

5. Chlorine is used as a bleaching agent. The bleaching action is due to

(a) oxidation

(b) chlorination

(c) hydrogenation

(d) reduction

Answer: (a)

6. Which of the following is produced on the reaction of bleaching powder with a few drops of conc. HCl?

(a) Hypochlorous acid

(b) Oxygen

(c) Chlorine

(d) Calcium oxide

Answer: (c)

7. Who suggested the name chlorine for the first time?

(a) Davy

(b) Scheele

(c) Priestley

(d) Rutherford

Answer: (a)

8. Chlorine reacts with cold and dil. Alkali to form

(a) chloride

(b) hypochlorite

(c) chlorate

(d) both (a) and (b)

Answer: (d)

9. Deacon’s process is used to manufacture

(a) nitric acid

(b) sulphuric acid

(c) chlorine

(d) bleaching powder

Answer: (c)

10. Chlorine gas reacts with _______ to form bleaching powder.

(a) dry slaked lime

(b) dil. solution of Ca(OH)₂

(c) conc. solution of Ca(OH)₂

(d) dry CaO

Answer: (a)