Chemical Reactions of Aldehydes and Ketones
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CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323586 The correct sequence of reagents for the following conversion will be:-
supporting img

1 \(\left[\mathrm{Ag}\left(\mathrm{NH}_{3}\right)_{2}\right]^{+} \mathrm{OH}^{-}, \mathrm{H}^{+} / \mathrm{CH}_{3} \mathrm{OH}, \mathrm{CH}_{3} \mathrm{MgBr}\)
2 \(\left[\mathrm{Ag}\left(\mathrm{NH}_{3}\right)_{2}\right]^{+} \mathrm{OH}^{-}, \mathrm{CH}_{3} \mathrm{MgBr}, \mathrm{H}^{+} / \mathrm{CH}_{3} \mathrm{OH}\)
3 \(\mathrm{CH}_{3} \mathrm{MgBr}, \mathrm{H}^{+} / \mathrm{CH}_{3} \mathrm{OH},\left[\mathrm{Ag}\left(\mathrm{NH}_{3}\right)_{2}\right]^{+} \mathrm{OH}^{-}\)
4 \(\mathrm{CH}_{3} \mathrm{MgBr},\left[\mathrm{Ag}\left(\mathrm{NH}_{3}\right)_{2}\right]^{+} \mathrm{OH}^{-}, \mathrm{H}^{+} / \mathrm{CH}_{3} \mathrm{OH}\)
JEE - 2017
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323587 Which is not true about acetophenone?

1 It reacts with 2, 4-DNP to form 2, 4- dinitrophenyl hydrazone
2 It reacts with Tollen's reagent to form silver mirror
3 It reacts with \(\mathrm{I}_{2} / \mathrm{NaOH}\) to form iodoform
4 On oxidation with alkaline \(\mathrm{KMnO}_{4}\) followed by hydrolysis it gives benzoic acid.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323588 The correct statement about the synthesis of erythritol \(\left( {{\rm{C}}{{\left( {{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{OH}}} \right)}_{\rm{4}}}} \right)\) used in the preparation of PETN is:

1 The synthesis requires two aldol condensations and two Cannizzaro reactions.
2 \(\alpha\) - hydrogens of ethanol and methanol are involved in this reaction.
3 The synthesis requires four aldol condensations between methanol and ethanol.
4 The synthesis requires three aldol condensations and one Cannizzaro reaction.
JEE - 2016
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323589 An organic compound ' \(\mathrm{X}\) ' having molecular
formula \(\mathrm{C}_{5} \mathrm{H}_{10} \mathrm{O}\) yields phenyl hydrazone and
gives negative response to the Iodoform test
and Tollen's test. It produces n-pentane
on reduction. ' \(\mathrm{X}\) ' could be

1 2-pentanone
2 3-pentanone
3 n-amyl alcohol
4 pentanal
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CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323586 The correct sequence of reagents for the following conversion will be:-
supporting img

1 \(\left[\mathrm{Ag}\left(\mathrm{NH}_{3}\right)_{2}\right]^{+} \mathrm{OH}^{-}, \mathrm{H}^{+} / \mathrm{CH}_{3} \mathrm{OH}, \mathrm{CH}_{3} \mathrm{MgBr}\)
2 \(\left[\mathrm{Ag}\left(\mathrm{NH}_{3}\right)_{2}\right]^{+} \mathrm{OH}^{-}, \mathrm{CH}_{3} \mathrm{MgBr}, \mathrm{H}^{+} / \mathrm{CH}_{3} \mathrm{OH}\)
3 \(\mathrm{CH}_{3} \mathrm{MgBr}, \mathrm{H}^{+} / \mathrm{CH}_{3} \mathrm{OH},\left[\mathrm{Ag}\left(\mathrm{NH}_{3}\right)_{2}\right]^{+} \mathrm{OH}^{-}\)
4 \(\mathrm{CH}_{3} \mathrm{MgBr},\left[\mathrm{Ag}\left(\mathrm{NH}_{3}\right)_{2}\right]^{+} \mathrm{OH}^{-}, \mathrm{H}^{+} / \mathrm{CH}_{3} \mathrm{OH}\)
JEE - 2017
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323587 Which is not true about acetophenone?

1 It reacts with 2, 4-DNP to form 2, 4- dinitrophenyl hydrazone
2 It reacts with Tollen's reagent to form silver mirror
3 It reacts with \(\mathrm{I}_{2} / \mathrm{NaOH}\) to form iodoform
4 On oxidation with alkaline \(\mathrm{KMnO}_{4}\) followed by hydrolysis it gives benzoic acid.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323588 The correct statement about the synthesis of erythritol \(\left( {{\rm{C}}{{\left( {{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{OH}}} \right)}_{\rm{4}}}} \right)\) used in the preparation of PETN is:

1 The synthesis requires two aldol condensations and two Cannizzaro reactions.
2 \(\alpha\) - hydrogens of ethanol and methanol are involved in this reaction.
3 The synthesis requires four aldol condensations between methanol and ethanol.
4 The synthesis requires three aldol condensations and one Cannizzaro reaction.
JEE - 2016
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323589 An organic compound ' \(\mathrm{X}\) ' having molecular
formula \(\mathrm{C}_{5} \mathrm{H}_{10} \mathrm{O}\) yields phenyl hydrazone and
gives negative response to the Iodoform test
and Tollen's test. It produces n-pentane
on reduction. ' \(\mathrm{X}\) ' could be

1 2-pentanone
2 3-pentanone
3 n-amyl alcohol
4 pentanal
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CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323586 The correct sequence of reagents for the following conversion will be:-
supporting img

1 \(\left[\mathrm{Ag}\left(\mathrm{NH}_{3}\right)_{2}\right]^{+} \mathrm{OH}^{-}, \mathrm{H}^{+} / \mathrm{CH}_{3} \mathrm{OH}, \mathrm{CH}_{3} \mathrm{MgBr}\)
2 \(\left[\mathrm{Ag}\left(\mathrm{NH}_{3}\right)_{2}\right]^{+} \mathrm{OH}^{-}, \mathrm{CH}_{3} \mathrm{MgBr}, \mathrm{H}^{+} / \mathrm{CH}_{3} \mathrm{OH}\)
3 \(\mathrm{CH}_{3} \mathrm{MgBr}, \mathrm{H}^{+} / \mathrm{CH}_{3} \mathrm{OH},\left[\mathrm{Ag}\left(\mathrm{NH}_{3}\right)_{2}\right]^{+} \mathrm{OH}^{-}\)
4 \(\mathrm{CH}_{3} \mathrm{MgBr},\left[\mathrm{Ag}\left(\mathrm{NH}_{3}\right)_{2}\right]^{+} \mathrm{OH}^{-}, \mathrm{H}^{+} / \mathrm{CH}_{3} \mathrm{OH}\)
JEE - 2017
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323587 Which is not true about acetophenone?

1 It reacts with 2, 4-DNP to form 2, 4- dinitrophenyl hydrazone
2 It reacts with Tollen's reagent to form silver mirror
3 It reacts with \(\mathrm{I}_{2} / \mathrm{NaOH}\) to form iodoform
4 On oxidation with alkaline \(\mathrm{KMnO}_{4}\) followed by hydrolysis it gives benzoic acid.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323588 The correct statement about the synthesis of erythritol \(\left( {{\rm{C}}{{\left( {{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{OH}}} \right)}_{\rm{4}}}} \right)\) used in the preparation of PETN is:

1 The synthesis requires two aldol condensations and two Cannizzaro reactions.
2 \(\alpha\) - hydrogens of ethanol and methanol are involved in this reaction.
3 The synthesis requires four aldol condensations between methanol and ethanol.
4 The synthesis requires three aldol condensations and one Cannizzaro reaction.
JEE - 2016
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323589 An organic compound ' \(\mathrm{X}\) ' having molecular
formula \(\mathrm{C}_{5} \mathrm{H}_{10} \mathrm{O}\) yields phenyl hydrazone and
gives negative response to the Iodoform test
and Tollen's test. It produces n-pentane
on reduction. ' \(\mathrm{X}\) ' could be

1 2-pentanone
2 3-pentanone
3 n-amyl alcohol
4 pentanal
For More Updates join with Us
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323586 The correct sequence of reagents for the following conversion will be:-
supporting img

1 \(\left[\mathrm{Ag}\left(\mathrm{NH}_{3}\right)_{2}\right]^{+} \mathrm{OH}^{-}, \mathrm{H}^{+} / \mathrm{CH}_{3} \mathrm{OH}, \mathrm{CH}_{3} \mathrm{MgBr}\)
2 \(\left[\mathrm{Ag}\left(\mathrm{NH}_{3}\right)_{2}\right]^{+} \mathrm{OH}^{-}, \mathrm{CH}_{3} \mathrm{MgBr}, \mathrm{H}^{+} / \mathrm{CH}_{3} \mathrm{OH}\)
3 \(\mathrm{CH}_{3} \mathrm{MgBr}, \mathrm{H}^{+} / \mathrm{CH}_{3} \mathrm{OH},\left[\mathrm{Ag}\left(\mathrm{NH}_{3}\right)_{2}\right]^{+} \mathrm{OH}^{-}\)
4 \(\mathrm{CH}_{3} \mathrm{MgBr},\left[\mathrm{Ag}\left(\mathrm{NH}_{3}\right)_{2}\right]^{+} \mathrm{OH}^{-}, \mathrm{H}^{+} / \mathrm{CH}_{3} \mathrm{OH}\)
JEE - 2017
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323587 Which is not true about acetophenone?

1 It reacts with 2, 4-DNP to form 2, 4- dinitrophenyl hydrazone
2 It reacts with Tollen's reagent to form silver mirror
3 It reacts with \(\mathrm{I}_{2} / \mathrm{NaOH}\) to form iodoform
4 On oxidation with alkaline \(\mathrm{KMnO}_{4}\) followed by hydrolysis it gives benzoic acid.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323588 The correct statement about the synthesis of erythritol \(\left( {{\rm{C}}{{\left( {{\rm{C}}{{\rm{H}}_{\rm{2}}}{\rm{OH}}} \right)}_{\rm{4}}}} \right)\) used in the preparation of PETN is:

1 The synthesis requires two aldol condensations and two Cannizzaro reactions.
2 \(\alpha\) - hydrogens of ethanol and methanol are involved in this reaction.
3 The synthesis requires four aldol condensations between methanol and ethanol.
4 The synthesis requires three aldol condensations and one Cannizzaro reaction.
JEE - 2016
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323589 An organic compound ' \(\mathrm{X}\) ' having molecular
formula \(\mathrm{C}_{5} \mathrm{H}_{10} \mathrm{O}\) yields phenyl hydrazone and
gives negative response to the Iodoform test
and Tollen's test. It produces n-pentane
on reduction. ' \(\mathrm{X}\) ' could be

1 2-pentanone
2 3-pentanone
3 n-amyl alcohol
4 pentanal