Question

1.
What changes occur in a solution of AgNO, and NaCl
in the presence of sunlight?
a) gas is evolved b) heat is produced
c) precipitate is formed d) No change is​

Answer 1

Answer:

c) Precipitate is formed.

Explanation:

Na is more reactive than Ag. So it displaces Ag from AgNO3.

AgNO3 + NaCl ---> AgCl + NaNO3

In presence of sunlight, this AgCl is broken down into Ag and Cl2.

2 AgCl ---> 2 Ag + Cl2

Cl2 is evolved as a gas and Silver remains as a precipitate.