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ALDEHYDES, KETONES AND CARBOXYLIC ACID

28211 In the given reaction${C_6}{H_5}CHO+X\mathop {\xrightarrow{{(i)\,Zn\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}}}\limits_{(ii)\,HOH/N{H_4}Cl} \begin{array}{*{20}{c}}
{OH\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{{C_6}{H_5} - CH - C{H_2} - COO{C_2}{H_5}}
\end{array}$$[X]$ will be:

1 $CH_3-COOC_2H_5$

2 $CH_3-CH_2-COOC_2H_5$

3 $Br-CH_2-COOC_2H_5$

4

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28212 The given reaction${C_6}{H_5} - CHO + Br - C{H_2} - COO{C_2}H$ $\mathop {\xrightarrow{{(i)\,Zn\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}}}\limits_{(ii)\,HOH/N{H_4}Cl\,\,\,(iii)\,\Delta } $ ${C_6}{H_5} - CH = CH - COO{C_2}{H_5}$is known as :

1 Perkin reaction

2 Knoevenagel reaction

3 Reformatsky reaction

4 Claisen-Schmidt reaction

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28213 Cannizzaro reaction is example of :

1 Redox reaction

2 Disproportionation

3 Both $(A)$ and $(B)$

4 Only oxidation

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28214 Acetaldehyde can be converted into $\begin{array}{*{20}{c}}
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{H_2}OH} \\
{\,\,\,\,\,\,\,\,\,\,\,|} \\
{HO\, - \,C{H_2} - C - C{H_2}OH} \\
{\,\,\,\,\,\,\,\,\,\,\,|} \\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{H_2}OH}
\end{array}$ by which reagent ?

1 $KOH$

2 $KOH$ followed by $LAH$

3 excess of $HCHO$ and $KOH$

4 $KCN$ followed by $SBH$

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28215 Metaformaldehyde is:

1 Dimmer of $HCHO$

2 Trimer of formaldehyde

3 Tetramer of formaldehyde

4 Polymer in which number of $HCHO$ unit is more than $100$

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28211 In the given reaction${C_6}{H_5}CHO+X\mathop {\xrightarrow{{(i)\,Zn\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}}}\limits_{(ii)\,HOH/N{H_4}Cl} \begin{array}{*{20}{c}}
{OH\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{{C_6}{H_5} - CH - C{H_2} - COO{C_2}{H_5}}
\end{array}$$[X]$ will be:

1 $CH_3-COOC_2H_5$

2 $CH_3-CH_2-COOC_2H_5$

3 $Br-CH_2-COOC_2H_5$

4

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28212 The given reaction${C_6}{H_5} - CHO + Br - C{H_2} - COO{C_2}H$ $\mathop {\xrightarrow{{(i)\,Zn\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}}}\limits_{(ii)\,HOH/N{H_4}Cl\,\,\,(iii)\,\Delta } $ ${C_6}{H_5} - CH = CH - COO{C_2}{H_5}$is known as :

1 Perkin reaction

2 Knoevenagel reaction

3 Reformatsky reaction

4 Claisen-Schmidt reaction

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28213 Cannizzaro reaction is example of :

1 Redox reaction

2 Disproportionation

3 Both $(A)$ and $(B)$

4 Only oxidation

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28214 Acetaldehyde can be converted into $\begin{array}{*{20}{c}}
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{H_2}OH} \\
{\,\,\,\,\,\,\,\,\,\,\,|} \\
{HO\, - \,C{H_2} - C - C{H_2}OH} \\
{\,\,\,\,\,\,\,\,\,\,\,|} \\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{H_2}OH}
\end{array}$ by which reagent ?

1 $KOH$

2 $KOH$ followed by $LAH$

3 excess of $HCHO$ and $KOH$

4 $KCN$ followed by $SBH$

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28215 Metaformaldehyde is:

1 Dimmer of $HCHO$

2 Trimer of formaldehyde

3 Tetramer of formaldehyde

4 Polymer in which number of $HCHO$ unit is more than $100$

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28211 In the given reaction${C_6}{H_5}CHO+X\mathop {\xrightarrow{{(i)\,Zn\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}}}\limits_{(ii)\,HOH/N{H_4}Cl} \begin{array}{*{20}{c}}
{OH\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{{C_6}{H_5} - CH - C{H_2} - COO{C_2}{H_5}}
\end{array}$$[X]$ will be:

1 $CH_3-COOC_2H_5$

2 $CH_3-CH_2-COOC_2H_5$

3 $Br-CH_2-COOC_2H_5$

4

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28212 The given reaction${C_6}{H_5} - CHO + Br - C{H_2} - COO{C_2}H$ $\mathop {\xrightarrow{{(i)\,Zn\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}}}\limits_{(ii)\,HOH/N{H_4}Cl\,\,\,(iii)\,\Delta } $ ${C_6}{H_5} - CH = CH - COO{C_2}{H_5}$is known as :

1 Perkin reaction

2 Knoevenagel reaction

3 Reformatsky reaction

4 Claisen-Schmidt reaction

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28213 Cannizzaro reaction is example of :

1 Redox reaction

2 Disproportionation

3 Both $(A)$ and $(B)$

4 Only oxidation

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28214 Acetaldehyde can be converted into $\begin{array}{*{20}{c}}
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{H_2}OH} \\
{\,\,\,\,\,\,\,\,\,\,\,|} \\
{HO\, - \,C{H_2} - C - C{H_2}OH} \\
{\,\,\,\,\,\,\,\,\,\,\,|} \\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{H_2}OH}
\end{array}$ by which reagent ?

1 $KOH$

2 $KOH$ followed by $LAH$

3 excess of $HCHO$ and $KOH$

4 $KCN$ followed by $SBH$

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28215 Metaformaldehyde is:

1 Dimmer of $HCHO$

2 Trimer of formaldehyde

3 Tetramer of formaldehyde

4 Polymer in which number of $HCHO$ unit is more than $100$

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28211 In the given reaction${C_6}{H_5}CHO+X\mathop {\xrightarrow{{(i)\,Zn\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}}}\limits_{(ii)\,HOH/N{H_4}Cl} \begin{array}{*{20}{c}}
{OH\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{{C_6}{H_5} - CH - C{H_2} - COO{C_2}{H_5}}
\end{array}$$[X]$ will be:

1 $CH_3-COOC_2H_5$

2 $CH_3-CH_2-COOC_2H_5$

3 $Br-CH_2-COOC_2H_5$

4

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28212 The given reaction${C_6}{H_5} - CHO + Br - C{H_2} - COO{C_2}H$ $\mathop {\xrightarrow{{(i)\,Zn\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}}}\limits_{(ii)\,HOH/N{H_4}Cl\,\,\,(iii)\,\Delta } $ ${C_6}{H_5} - CH = CH - COO{C_2}{H_5}$is known as :

1 Perkin reaction

2 Knoevenagel reaction

3 Reformatsky reaction

4 Claisen-Schmidt reaction

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28213 Cannizzaro reaction is example of :

1 Redox reaction

2 Disproportionation

3 Both $(A)$ and $(B)$

4 Only oxidation

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28214 Acetaldehyde can be converted into $\begin{array}{*{20}{c}}
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{H_2}OH} \\
{\,\,\,\,\,\,\,\,\,\,\,|} \\
{HO\, - \,C{H_2} - C - C{H_2}OH} \\
{\,\,\,\,\,\,\,\,\,\,\,|} \\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{H_2}OH}
\end{array}$ by which reagent ?

1 $KOH$

2 $KOH$ followed by $LAH$

3 excess of $HCHO$ and $KOH$

4 $KCN$ followed by $SBH$

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28215 Metaformaldehyde is:

1 Dimmer of $HCHO$

2 Trimer of formaldehyde

3 Tetramer of formaldehyde

4 Polymer in which number of $HCHO$ unit is more than $100$

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28211 In the given reaction${C_6}{H_5}CHO+X\mathop {\xrightarrow{{(i)\,Zn\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}}}\limits_{(ii)\,HOH/N{H_4}Cl} \begin{array}{*{20}{c}}
{OH\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{{C_6}{H_5} - CH - C{H_2} - COO{C_2}{H_5}}
\end{array}$$[X]$ will be:

1 $CH_3-COOC_2H_5$

2 $CH_3-CH_2-COOC_2H_5$

3 $Br-CH_2-COOC_2H_5$

4

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28212 The given reaction${C_6}{H_5} - CHO + Br - C{H_2} - COO{C_2}H$ $\mathop {\xrightarrow{{(i)\,Zn\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}}}\limits_{(ii)\,HOH/N{H_4}Cl\,\,\,(iii)\,\Delta } $ ${C_6}{H_5} - CH = CH - COO{C_2}{H_5}$is known as :

1 Perkin reaction

2 Knoevenagel reaction

3 Reformatsky reaction

4 Claisen-Schmidt reaction

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28213 Cannizzaro reaction is example of :

1 Redox reaction

2 Disproportionation

3 Both $(A)$ and $(B)$

4 Only oxidation

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28214 Acetaldehyde can be converted into $\begin{array}{*{20}{c}}
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{H_2}OH} \\
{\,\,\,\,\,\,\,\,\,\,\,|} \\
{HO\, - \,C{H_2} - C - C{H_2}OH} \\
{\,\,\,\,\,\,\,\,\,\,\,|} \\
{\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,C{H_2}OH}
\end{array}$ by which reagent ?

1 $KOH$

2 $KOH$ followed by $LAH$

3 excess of $HCHO$ and $KOH$

4 $KCN$ followed by $SBH$

ALDEHYDES, KETONES AND CARBOXYLIC ACID

28215 Metaformaldehyde is:

1 Dimmer of $HCHO$

2 Trimer of formaldehyde

3 Tetramer of formaldehyde

4 Polymer in which number of $HCHO$ unit is more than $100$

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