A ketone reacted with C₂H₅MgBr reagent followed by hydrolysis gave a product which on dehydration gives an alken. The alkene on ozonolysis gave diethyl ketone and acetaldehyde. The ketone is:

(1) dimethyl ketone

(2) ethyl methyl ketone

(3) diethyl ketone

(4) ethyl propyl ketone

The reaction  produces:

1. 

2. 

3. 

4. 

Treatement of propionaldehyde with dil. NaOH gives:

(1) ${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{COOCH}}_2{\mathrm{CH}}_2{\mathrm{CH}}_3$

(2) ${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CHOHCH}}_2{\mathrm{CH}}_2\mathrm{CHO}$

(3) ${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{CHOHCH}\left({\mathrm{CH}}_3\right)\mathrm{CHO}$

(4) ${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{COCH}}_2{\mathrm{CH}}_2\mathrm{CHO}$

Which of the following will react with water ?

(1) CHCl₃

(2) CCl₃CHO

(3) CCl₄

(4) CH₂Cl.CH₂Cl

Among the given compounds, the most susceptible to nucleophile attack at the carbonyl group is:

(1) MeCOCl

(2) MeCHO

(3) MeCOOMe

(4) MeCOOCOMe

In a Cannizzaro's reaction, the intermediate that will be best hydride donor is:

1. 

2. 

3. 

4. 

In the Cannizzaro's reaction given below,

$2\mathrm{Ph}-\mathrm{CHO}\stackrel{{\mathrm{OH}}^{-}}{\to }\mathrm{Ph}-{\mathrm{CH}}_2\mathrm{OH} + {\mathrm{PhCOO}}^{-}$

the slowest step is:

1. The attack of OH^- at the carbonyl group

2. The transfer of hydride to the carbonyl group

3. The abstraction of proton from the carboxylic acid

4. the deprotonation of Ph-CH₂OH

The aldol condensation of acetaldehyde results in hte formation of:

1. $$\begin{gathered} {\mathrm{CH}}_3 \mathrm{C} {\mathrm{CHCH}}_3 \\ \left|\right| | \\ \mathrm{O} \mathrm{OH} \end{gathered}$$

2. $$\begin{gathered} {\mathrm{CH}}_3 {\mathrm{CHCH}}_2 \mathrm{CH} \\ | || \\ \mathrm{OH} \mathrm{O} \end{gathered}$$

3. $$\begin{gathered} {\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{CH}—\mathrm{CH} \\ | || \\ \mathrm{OH} \mathrm{O} \end{gathered}$$

4. ${\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{OH}+\mathrm{COOH}$

Wolff-Kishner's reaction is:

1. reduction of carbonyl compound into hydrocarbons

2. reduction of carbonyl compound into alcohols

3. reduction of nitrobenzene into aniline

4. reduction of carbohydrates to alcohol

The correct order of reactivity of PhMgBr with,

$O O O$
$\left|\right| \left|\right| \left|\right|$
$PH—C—PH C{H}_3—C—H C{H}_3—C—C{H}_3 is:$
$\left(l\right) \left(ll\right) \left(lll\right)$

(1) I>II>III

(2) III>II>I

(3) II>III>I

(4) II>I>III