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)
