Deep sea divers use a mixture of ....... for respiration.

Suggest a reason as to why $CO$ is poisonous.

For the $14^{th}$ group (carbon family),which of the following statements is correct regarding the properties as the atomic number increases?

Why does carbon differ from the rest of the members of its group? Explain.

Hydrolysis of which of the following does not occur?

$RCl$ $\xrightarrow[Si]{Cu \text{ powder}} R_2SiCl_2$ $\xrightarrow{H_2O} R_2Si(OH)_2$ $\xrightarrow{\text{condensation}} A$
Compound $(A)$ is: