Which of the following equations represents a decomposition reaction?

Which of the following equations represents a decomposition reaction?

مندرجہ ذیل میں سے کون سی مساوات گلنے کے رد عمل کی نمائندگی کرتی ہے؟
Explanation

A decomposition reaction involves a single compound breaking down into simpler substances.

AB → A + B is the correct format for decomposition.