When iodoform is heated with $Ag$ powder,the product formed is:

Consider the following reaction sequence:
$CH_3CH_2CH_2CH(Br)CH_2Br + 2NaNH_2 \rightarrow X$
$X \xrightarrow[(ii) (CH_3)_2CHBr]{(i) NaNH_2} Y$
The product $Y$ formed is:

Identify the reagent used for the following conversion: $CH_3-C \equiv C-CH_3 \longrightarrow \text{cis-but-2-ene}$

Which of the following hydrocarbons forms a salt?

Which of the following contains acidic hydrogen?

The reaction sequence is given as:
$CH_3-CH=CH-CH_3$ $\xrightarrow{Br_2/CCl_4} \text{Intermediate}$ $\xrightarrow[(ii) NaNH_2]{(i) alc. KOH} (A)$
Product $(A)$ is: