question_answer

Which of the following compounds imparts red colour to the flame and decomposes on heating to give oxygen and a brown gas?

A)  \[\text{CaC}{{\text{O}}_{\text{3}}}\]                    

B)         \[\text{MgN}{{\text{O}}_{\text{3}}}\]

C) \[\text{MgC}{{\text{O}}_{\text{3}}}\]                   

D)         \[\text{Ca }{{\left( \text{N}{{\text{O}}_{\text{3}}} \right)}_{2}}\]