Please answer Q20 and tell why the other options are incorrect.
Dear Student,
Option A is correct.
AgNO3(aq) + NaCl(aq) AgCl(s) + NaNO3(aq)
As a result of double displacement, AgCl(s) is formed as a precipitate whereas NaNO3 remains dissolved in an aqueous solution.
Upon filtering the precipitate is left on filter paper and the filtrate is left with NaNO3.
The crystallization method is suitable when we have a saturated solution of salt. Since AgCl is a precipitate, the crystallization technique is unsuitable.
Finally, Ag being a less active metal does not react with dilute acid to form AgCl.
Regards
Option A is correct.
AgNO3(aq) + NaCl(aq) AgCl(s) + NaNO3(aq)
As a result of double displacement, AgCl(s) is formed as a precipitate whereas NaNO3 remains dissolved in an aqueous solution.
Upon filtering the precipitate is left on filter paper and the filtrate is left with NaNO3.
The crystallization method is suitable when we have a saturated solution of salt. Since AgCl is a precipitate, the crystallization technique is unsuitable.
Finally, Ag being a less active metal does not react with dilute acid to form AgCl.
Regards