$\underset{{\mathrm{H}}_{2}\mathrm{O}}{\overset{\mathrm{HCHO},{\mathrm{H}}^{+}}{\to }}$major product of this reaction is:

(a)

(b)

(c)

(d)

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(a)
(b)
(c)
(d)

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Product (C) of the reaction is:-

(a)(b)(c)(d)

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What is the major product expected from the following reaction?

$\stackrel{\mathrm{D}-\mathrm{Cl}}{\to }$ Product

1.    2.

3.    4.

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Product; Product is:-

(a) (b) (c) (d)

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How many stereoisomeric tetrabromides will be formed in the following reaction  ?

(a)2 (b)3 (c) 4 (d) 6

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${\mathrm{CH}}_{3}-\underset{|}{\mathrm{C}}\mathrm{H}-{\mathrm{CO}}_{2}\mathrm{K}\phantom{\rule{0ex}{0ex}}{\mathrm{CH}}_{3}-\mathrm{CH}-{\mathrm{CO}}_{2}\mathrm{K}$ $\stackrel{\mathrm{electrolysis}}{\to }$ (A) (Major)

Major product (A) of the above reaction:

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(Only one enantiomer is taken)
Which of the following statement is correct about A and B ?
(a) A  and B are mixture of diastereomers
(b) A and B are mixture of enantiomers
(c) A and B are optically active
(d) B is racemic mixture

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$\stackrel{{\mathrm{NaBH}}_{4}}{\to }$A$\stackrel{{\mathrm{O}}_{3}}{\to }$B$\stackrel{{\mathrm{H}}_{2}\mathrm{O}}{\to }$(c) (one of the product)

Identify the product (C):

(a) $\begin{array}{ccccccc}{\mathrm{CH}}_{3}& -& \stackrel{\mathrm{O}}{\stackrel{\parallel }{\mathrm{C}}}& -& \stackrel{\mathrm{O}}{\stackrel{\parallel }{\mathrm{C}}}& -& \mathrm{O}\begin{array}{cc}-& {\mathrm{CH}}_{3}\end{array}\end{array}$

(b) $\begin{array}{ccc}\underset{|}{{\mathrm{CH}}_{2}}& -& \mathrm{OH}\\ \underset{|}{\mathrm{CH}}& -& \mathrm{OH}\\ {\mathrm{CH}}_{2}& -& \mathrm{OH}\end{array}$

(c) $\begin{array}{ccc}\stackrel{\mathrm{CHO}}{\stackrel{|}{\underset{|}{\mathrm{CH}}}}& -& \mathrm{OH}\\ {\mathrm{CH}}_{2}& -& \mathrm{OH}\end{array}$

(d) $\begin{array}{c}\underset{|}{\mathrm{CHO}}\\ \underset{|}{\mathrm{CHOH}}\\ \mathrm{CHO}\end{array}$

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$\stackrel{{\mathrm{HO}}^{⊝}}{\to }$ (X) $\stackrel{\mathrm{CH}2=\mathrm{CH}-\stackrel{\oplus }{\mathrm{P}}\mathrm{Ph}3{\mathrm{Br}}^{⊝}}{\to }$ (Y)

Product (Y) of the above reaction is: