Question

Q.6.Which one of the following is the example of precipitation reaction? *

1 point

(a) Cu(S )+ AgNO3 (aq) ---------->Cu(NO3)2(aq) + 2Ag(s)

(b) CuCO3 (s)-------> CuO(s )s CO2 (g )

(c) N2(g) +3H2(g)2 ------> 2NH3(g)

(d) AgNO3( aq) + NaCl(aq)-----> AgCl(s ) + NaNO3(aq)​

Answer 1

Answer:

D

Explanation:

Because agcl is a white precipitate

Answer 2

Of the following the example of a precipitation reaction is (d) AgNO3( aq) + NaCl(aq)-----> AgCl(s ) + NaNO3(aq)

• All of the reactant states in this double-displacement reaction are aqueous, which means that they are soluble in water. AgCl is formed as a solid insoluble precipitate as it doesn't dissolve in water. The soluble sodium nitrate is the other product of the reaction.
• To accomplish this, the AgCl precipitate is filtered, washed, dried, and weighed.
• Hence, since the formation of a precipitate (AgCl) takes place in this reaction so, (d) AgNO3( aq) + NaCl(aq)-----> AgCl(s ) + NaNO3(aq) is an example of a precipitation reaction.