Question

Which of the following, on reaction with $H_{2}S$, does not produce metallic sulphide?

• A. $CdC{l}_2$
• B. $ZnC{l}_2$
• C. $COC{l}_2$
• D. $CuC{l}_2$

Answer 1

Answer: (C)

$H_{2}S$ is the group reagent for II and IV group of basic radicals (cations). So with $COC{l}_2$ (no metal here), no metallic sulphide will be produced.