12. ALDEHYDES KETONES AND CARBOXYLIC ACIDS[KARNATAKA CET EXCLUSIVE]
CHEMISTRY(KCET)

285607 \(\mathrm{X} \xrightarrow[\text { (Reductive) }]{\text { Ozonolysis }} \mathrm{Y}+\mathrm{Z}\)

Y can be obtained by Etard's reaction. Z undergoes disproportionation reaction with concentrated alkali. X could be
Ans:b
Exp:(b)
'Y' is obtained by Etard's reaction.
Toluene
(Benzaldehyde)
\(\underset{\text { Formaldehyde }}{2 \mathrm{HCHO}}+\mathrm{NaOH} \xrightarrow[\text { Cannizzaros's reaction }]{ }\)
Formaldehyde 'Z'
\(\mathrm{HCOONa}+\mathrm{CH}_3 \mathrm{OH}\)
Sodium formate

CHEMISTRY(KCET)

285608 When\(\mathrm{CH}_2=\mathrm{CH}-\mathrm{O}-\mathrm{CH}_2-\mathrm{CH}_3\) reacts with one mole of HI , one of the products formed is

1 ethane
2 ethanol
3 iodoethene
4 ethanal.
CHEMISTRY(KCET)

285609 Acetophenone cannot be prepared easily starting from

1 \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}(\mathrm{OH}) \mathrm{CH}_3\)
2 \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_3\)
3 \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{C} \equiv \mathrm{CH}\)
4 \(\mathrm{C}_6 \mathrm{H}_6\)
CHEMISTRY(KCET)

285605 Match the reactant in column-I with the reaction in column-II.

Column-IColumn-II
(i)Acetic acid(A)Stephen's reaction
(ii)Sodiumphenate(B)Friedel-Crafts reaction
(iii)Methyl cyanide(C)HVZ reaction
(iv)Toluene(D)Kolbe's reaction

1 i-C, ii-A, iii-D, iv-B
2 i-D, ii-B, iii-C, iv-A
3 i-B, ii-C, iii-A, iv-D
4 i-C, ii-D, iii-A, iv-B
CHEMISTRY(KCET)

285607 \(\mathrm{X} \xrightarrow[\text { (Reductive) }]{\text { Ozonolysis }} \mathrm{Y}+\mathrm{Z}\)

Y can be obtained by Etard's reaction. Z undergoes disproportionation reaction with concentrated alkali. X could be
Ans:b
Exp:(b)
'Y' is obtained by Etard's reaction.
Toluene
(Benzaldehyde)
\(\underset{\text { Formaldehyde }}{2 \mathrm{HCHO}}+\mathrm{NaOH} \xrightarrow[\text { Cannizzaros's reaction }]{ }\)
Formaldehyde 'Z'
\(\mathrm{HCOONa}+\mathrm{CH}_3 \mathrm{OH}\)
Sodium formate

CHEMISTRY(KCET)

285608 When\(\mathrm{CH}_2=\mathrm{CH}-\mathrm{O}-\mathrm{CH}_2-\mathrm{CH}_3\) reacts with one mole of HI , one of the products formed is

1 ethane
2 ethanol
3 iodoethene
4 ethanal.
CHEMISTRY(KCET)

285609 Acetophenone cannot be prepared easily starting from

1 \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}(\mathrm{OH}) \mathrm{CH}_3\)
2 \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_3\)
3 \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{C} \equiv \mathrm{CH}\)
4 \(\mathrm{C}_6 \mathrm{H}_6\)
CHEMISTRY(KCET)

285605 Match the reactant in column-I with the reaction in column-II.

Column-IColumn-II
(i)Acetic acid(A)Stephen's reaction
(ii)Sodiumphenate(B)Friedel-Crafts reaction
(iii)Methyl cyanide(C)HVZ reaction
(iv)Toluene(D)Kolbe's reaction

1 i-C, ii-A, iii-D, iv-B
2 i-D, ii-B, iii-C, iv-A
3 i-B, ii-C, iii-A, iv-D
4 i-C, ii-D, iii-A, iv-B
CHEMISTRY(KCET)

285607 \(\mathrm{X} \xrightarrow[\text { (Reductive) }]{\text { Ozonolysis }} \mathrm{Y}+\mathrm{Z}\)

Y can be obtained by Etard's reaction. Z undergoes disproportionation reaction with concentrated alkali. X could be
Ans:b
Exp:(b)
'Y' is obtained by Etard's reaction.
Toluene
(Benzaldehyde)
\(\underset{\text { Formaldehyde }}{2 \mathrm{HCHO}}+\mathrm{NaOH} \xrightarrow[\text { Cannizzaros's reaction }]{ }\)
Formaldehyde 'Z'
\(\mathrm{HCOONa}+\mathrm{CH}_3 \mathrm{OH}\)
Sodium formate

CHEMISTRY(KCET)

285608 When\(\mathrm{CH}_2=\mathrm{CH}-\mathrm{O}-\mathrm{CH}_2-\mathrm{CH}_3\) reacts with one mole of HI , one of the products formed is

1 ethane
2 ethanol
3 iodoethene
4 ethanal.
CHEMISTRY(KCET)

285609 Acetophenone cannot be prepared easily starting from

1 \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}(\mathrm{OH}) \mathrm{CH}_3\)
2 \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_3\)
3 \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{C} \equiv \mathrm{CH}\)
4 \(\mathrm{C}_6 \mathrm{H}_6\)
CHEMISTRY(KCET)

285605 Match the reactant in column-I with the reaction in column-II.

Column-IColumn-II
(i)Acetic acid(A)Stephen's reaction
(ii)Sodiumphenate(B)Friedel-Crafts reaction
(iii)Methyl cyanide(C)HVZ reaction
(iv)Toluene(D)Kolbe's reaction

1 i-C, ii-A, iii-D, iv-B
2 i-D, ii-B, iii-C, iv-A
3 i-B, ii-C, iii-A, iv-D
4 i-C, ii-D, iii-A, iv-B
CHEMISTRY(KCET)

285607 \(\mathrm{X} \xrightarrow[\text { (Reductive) }]{\text { Ozonolysis }} \mathrm{Y}+\mathrm{Z}\)

Y can be obtained by Etard's reaction. Z undergoes disproportionation reaction with concentrated alkali. X could be
Ans:b
Exp:(b)
'Y' is obtained by Etard's reaction.
Toluene
(Benzaldehyde)
\(\underset{\text { Formaldehyde }}{2 \mathrm{HCHO}}+\mathrm{NaOH} \xrightarrow[\text { Cannizzaros's reaction }]{ }\)
Formaldehyde 'Z'
\(\mathrm{HCOONa}+\mathrm{CH}_3 \mathrm{OH}\)
Sodium formate

CHEMISTRY(KCET)

285608 When\(\mathrm{CH}_2=\mathrm{CH}-\mathrm{O}-\mathrm{CH}_2-\mathrm{CH}_3\) reacts with one mole of HI , one of the products formed is

1 ethane
2 ethanol
3 iodoethene
4 ethanal.
CHEMISTRY(KCET)

285609 Acetophenone cannot be prepared easily starting from

1 \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}(\mathrm{OH}) \mathrm{CH}_3\)
2 \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_3\)
3 \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{C} \equiv \mathrm{CH}\)
4 \(\mathrm{C}_6 \mathrm{H}_6\)
CHEMISTRY(KCET)

285605 Match the reactant in column-I with the reaction in column-II.

Column-IColumn-II
(i)Acetic acid(A)Stephen's reaction
(ii)Sodiumphenate(B)Friedel-Crafts reaction
(iii)Methyl cyanide(C)HVZ reaction
(iv)Toluene(D)Kolbe's reaction

1 i-C, ii-A, iii-D, iv-B
2 i-D, ii-B, iii-C, iv-A
3 i-B, ii-C, iii-A, iv-D
4 i-C, ii-D, iii-A, iv-B