Mcq When zinc poweder is added to acetic acid ? A.the mixture becomes warm B.a gas is evolved C.the colour of mixture becomes yellow D.a solid settles at the bottom
1 Answer
Feb 24, 2018
B. A gas is evolved
Explanation:
When an active metal reacts with a dilute non-oxyacid, hydrogen steam is typically liberated and a SOLUBLE metal salt is typically formed.
This is normally given by:
#"Metal"+"Dilute Non-Oxyacid"rarr"Salt"+"Hydrogen"#
Here, the reaction is:
#"Zn"(s)+2"CH"_3"COOH"(aq)rarr2"Zn(CH"_3"COO)"_3(aq)+"H"_2(g)uarr# ,
or zinc plus acetic acid gives zinc acetate and hydrogen.