The given reaction is an example of,

C₂H₅Br + aqu. KCN → C₂H₅CN + KBr

1. Elimination

2. Nucleophilic substitution

3. Electrophilic substitution

4. Redox change

In the following sequences of reactions;

$C{H}_{3}C{H}_{2}C{H}_{2}Br<mspace\; width="1em"></mspace>\underset{-HBr}{\overset{KOH(alc.)}{\to }}\left(A\right)<mspace\; width="1em"></mspace><mspace\; width="1em"></mspace>\stackrel{HBr}{\to }<mspace\; width="1em"></mspace>\stackrel{}{<mspace\; width="1em"></mspace>}\left(B\right)<mspace\; width="1em"></mspace>\stackrel{KOH\left(aq\right)}{\to }<mspace\; width="1em"></mspace>\left(C\right)$

the product (C) is:

(1) propene

(2) propyne

(3) propan-1-ol

(4) propan-2-ol

Chloroform on reduction with Zn and HCl (alc.) gives:-

1. formic acid

2. chloretone

3. chloropicrin

4. methylene dichloride

Westrosol is:-

(1) acetylene tetrachloride

(2) acetylene dichloride

(3) trichloroehyne

(4) 1,1,2-trichloroethene

Reagent not used to prepare an alkyl halide from an alcohol is:

(1) HCl+ ZnCl₂

(2) NaCl

(3) PCl₅

(4) SOCl₂

Most readily hydrolysed halide is:-

(1) C₆H₅Cl

(2) (C₆H₅)₂CHCl

(3) C₆H₅CH₂Cl

(4) (C₆H₅)₃CCl

CCl₄ is insoluble in water because:-

(1) water is non-polar

(2) CCl₄ is non-polar

(3) water and CCl₄ are polar

(4) none of the above

In the reaction,

$C{H}_{3}C\equiv C¯N{a}^{+}<mspace\; width="1em"></mspace>+\hspace{0.17em}{\left(C{H}_3\right)}_{2}CHCl<mspace\; width="1em"></mspace>\to <mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace><mspace\; width="1em"></mspace>...............$

the product formed is:

(1) 4-Methylpent-2-yne

(2) propyne

(3) propyne and propene

(4) none of these

Chloral is:

1. CCl₃ CHO

2. CCl₃COCH₃

3. CCl₃CO-CCl₃

4.  CCl₃CH₂OH

Which process does not occur during formation of CHCl₃ from C₂H₅OH and bleaching powder?

1. Hydrolysis

2. Oxidation

3. Elimination

4. Chlorination