$But-1-ene$ may be converted to $butane$ by reaction with:

For the given reaction sequence,identify the products $(C)$ and $(D)$ formed after ozonolysis of the major product $(B)$:
$(CH_3)_2CH-CHCl-CH_3$ $\xrightarrow{C_2H_5ONa / C_2H_5OH} B$ $\xrightarrow{O_3 / H_2O_2} C + D$

The major product in the reaction is

The product $(P)$ in the given reaction is:

Write a test to detect the presence of a double bond in a molecule.

Cyclohexene is reacted with bromine in $CCl_4$ in the dark. The product of the reaction is,