Question

hgo→ hg + o₂
synthesis
decomposition
single displacement
double displacement
combustion

Explanation:

Step1: Recall reaction types

Synthesis: \(A + B
ightarrow AB\). Decomposition: \(AB
ightarrow A + B\). Single displacement: \(A+BC
ightarrow AC + B\). Double displacement: \(AB + CD
ightarrow AD+CB\). Combustion: \(C_xH_y+O_2
ightarrow CO_2 + H_2O\).

Step2: Analyze given reaction

The reaction \(HgO
ightarrow Hg + O_2\) is of the form \(AB
ightarrow A + B\).

Answer:

B. Decomposition