MCQ
The major product in the given reaction :

  • B

  • C

  • D
    All of these

Answer

Correct option: A.

a

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The possible number of stereoisomers of the product of following reaction would be

$\begin{array}{*{20}{c}}
  {Ph - CH = CH - CH - C = O\xrightarrow[{PH = 4.5}]{{{H_2}N - OH}}} \\ 
  {{\mkern 1mu} {\mkern 1mu} \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,|{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} } \\ 
  {{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{H_3}\,\,\,\,\,\,\,H{\mkern 1mu} {\mkern 1mu} \,\,{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} } 
\end{array}$ ?

The unbalanced chemical reactions given in List $I$ show missing reagent or condition $(?)$ which are provided in List $II$. Match List $I$ with List $II$ and select the correct answer using the code given below the lists :

List $I$ List $II$
$P.$ $PbO _2+ H _2 SO _4 \xrightarrow{?} PbSO _4+ O _2+$ other product $1.$ NO
$Q.$ $Na _2 S _2 O _3+ H _2 O \xrightarrow{?} NaHSO _4+$ other product $2.$ $I_2$
$R.$ $N _2 H _4 \xrightarrow{\text { ? }} N _2+$ other product $3.$ Warm
$S.$ $XeF _2 \xrightarrow{?} Xe +$ other product $4.$ $Cl _2$

Codes: $ \quad P \quad Q \quad R \quad S $ 

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