Question

Br- is converted into Br₂ by using :
(a) Cl₂ (b) conc. HCl
(c) HBr (d) H₂S

Answer 1

Answer:

Option C

Explanation:

the hydrogen will take the extra electron from Br- and would become stable. The Br in HBr will thus combine with previous one to form Br2.

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Answer 2

Answer:

$(a) \: cl2$

Explanation:

Remember : Any halogen placed above in periodic table will oxidize halide ion of halogen placed below.

Cl2+2Br−⟶Br2+2Cl−

Tendancy to undergo oxidation of halide ion increases down the group.

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