Question

Which equation shows a reaction that will occur at room temperature and pressure?
A Br2(aq) + 2NaCl (aq) → 2NaBr(aq) + Cl 2(aq)
B Br2(aq) + 2NaI(aq) → 2NaBr(aq) + I2(aq)
C I2(aq) + 2NaCl (aq) → 2NaI(aq) + Cl 2(aq)
D I2(aq) + 2NaBr(aq) → 2NaI(aq) + Br2(aq)

Answer 1

Answer:

option 2.

Explanation:

Only the lower halogens (in atomic no.) can displace the higher halogens.

So,

1) Fluorine can displace all other halides.

2) chlorine can displace bromine and iodine.

3) Bromine can displace Iodine.

4) Iodine can't displace any other.

Finally the option 2 is true according to 3rd statement

Answer 2

Answer:

B Br2(aq) + 2NaI(aq) → 2NaBr(aq) + I2(aq)

Explanation: