Which one of the following is likely to give a precipitate with $AgNO_3$ solution?

$1$-methyl ethylene oxide (propylene oxide) when treated with an excess of $HBr$ produces:

The correct order of reactivity of the given chlorides with acetate in acetic acid is:

The major product obtained when this substrate is subjected to $E_2$ reaction under the treatment of potassium $tert$-butoxide is:

Chloroform on reduction with zinc dust and water gives:

Arrange the following in order of $C-Br$ bond strength in a polar solvent. The structures are as follows:
$(I)$ $1$-methylcyclohexa-$2,4$-dienyl bromide
$(II)$ cyclohexa-$2,4$-dienyl bromide
$(III)$ $1$-methylcyclopenta-$2,4$-dienyl bromide
$(IV)$ cyclopenta-$2,4$-dienyl bromide