Miscellaneous Questions based on Aldehydes, Ketones and Carboxylic Acids
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323901 Several simple chemical tests are given to distinguish between the pair of compounds.
Which of the following pairs are correct?
(I) Propanal and propanone \({\mathrm{\rightarrow}}\) Silver mirror test
(II) Acetophenone and benzophenone \({\mathrm{\rightarrow}}\) Iodoform test
(III)Ethanal and propanal \({\mathrm{\rightarrow}}\) Fehling's test
(IV)Benzoic acid and ethylbenzoate \({\mathrm{\rightarrow}}\) Sodium bicarbonate test

1 I, II and III
2 I, II and IV
3 II and IV
4 I, II, III and IV
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323902 A compound with molecular formula \(\mathrm{C}_{4} \mathrm{H}_{10} \mathrm{O}_{3}\) is converted by the action of acetyl chloride to a compound of molecular mass 190. The original compound \(\left(\mathrm{C}_{4} \mathrm{H}_{10} \mathrm{O}_{3}\right)\) has

1 two OH groups
2 four OH groups
3 one OH group
4 three OH groups.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323903 An organic compound has an empirical formula \(\mathrm{C}_{5} \mathrm{H}_{10} \mathrm{O}\). This liquid gives a pale yellow precipitate on warming with iodine in alkaline KI solution. The resulting salt upon acidification gives an acid which easily undergoes decarboxylaction on mild heating. The structural formula of the organic liquid could be

1 \(\mathrm{CH}_{3} \mathrm{COCH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{3}\)
2 \(\mathrm{H}_{2} \mathrm{C}=\mathrm{CHCH}_{2} \mathrm{CH}(\mathrm{OH}) \mathrm{CH}_{3}\)
3 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CHO}\)
4 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{OCH}=\mathrm{CH}_{2}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323904 The end product \(C\) in the following sequence of chemical reactions is
supporting img

1 acetaldehyde oxime
2 formaldehyde oxime
3 methyl nitrate
4 acetoxime
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323905 supporting img
In the above chemical reaction sequence , A and B respectively are

1 \(\mathrm{H}_{2} \mathrm{O}, \mathrm{H}^{+}\)and \(\mathrm{KMnO}_{4}\)
2 \(\mathrm{O}_{3}, \mathrm{Zn} / \mathrm{H}_{2} \mathrm{O}\) and \(\mathrm{KMnO}_{4}\)
3 \(\mathrm{H}_{2} \mathrm{O}, \mathrm{H}^{+}\)and NaOH (alc.) \(/ \mathrm{I}_{2}\)
4 \(\mathrm{O}_{3}, \mathrm{Zn} / \mathrm{H}_{2} \mathrm{O}\) and NaOH (alc.) \(/ \mathrm{I}_{2}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323901 Several simple chemical tests are given to distinguish between the pair of compounds.
Which of the following pairs are correct?
(I) Propanal and propanone \({\mathrm{\rightarrow}}\) Silver mirror test
(II) Acetophenone and benzophenone \({\mathrm{\rightarrow}}\) Iodoform test
(III)Ethanal and propanal \({\mathrm{\rightarrow}}\) Fehling's test
(IV)Benzoic acid and ethylbenzoate \({\mathrm{\rightarrow}}\) Sodium bicarbonate test

1 I, II and III
2 I, II and IV
3 II and IV
4 I, II, III and IV
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323902 A compound with molecular formula \(\mathrm{C}_{4} \mathrm{H}_{10} \mathrm{O}_{3}\) is converted by the action of acetyl chloride to a compound of molecular mass 190. The original compound \(\left(\mathrm{C}_{4} \mathrm{H}_{10} \mathrm{O}_{3}\right)\) has

1 two OH groups
2 four OH groups
3 one OH group
4 three OH groups.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323903 An organic compound has an empirical formula \(\mathrm{C}_{5} \mathrm{H}_{10} \mathrm{O}\). This liquid gives a pale yellow precipitate on warming with iodine in alkaline KI solution. The resulting salt upon acidification gives an acid which easily undergoes decarboxylaction on mild heating. The structural formula of the organic liquid could be

1 \(\mathrm{CH}_{3} \mathrm{COCH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{3}\)
2 \(\mathrm{H}_{2} \mathrm{C}=\mathrm{CHCH}_{2} \mathrm{CH}(\mathrm{OH}) \mathrm{CH}_{3}\)
3 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CHO}\)
4 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{OCH}=\mathrm{CH}_{2}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323904 The end product \(C\) in the following sequence of chemical reactions is
supporting img

1 acetaldehyde oxime
2 formaldehyde oxime
3 methyl nitrate
4 acetoxime
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323905 supporting img
In the above chemical reaction sequence , A and B respectively are

1 \(\mathrm{H}_{2} \mathrm{O}, \mathrm{H}^{+}\)and \(\mathrm{KMnO}_{4}\)
2 \(\mathrm{O}_{3}, \mathrm{Zn} / \mathrm{H}_{2} \mathrm{O}\) and \(\mathrm{KMnO}_{4}\)
3 \(\mathrm{H}_{2} \mathrm{O}, \mathrm{H}^{+}\)and NaOH (alc.) \(/ \mathrm{I}_{2}\)
4 \(\mathrm{O}_{3}, \mathrm{Zn} / \mathrm{H}_{2} \mathrm{O}\) and NaOH (alc.) \(/ \mathrm{I}_{2}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323901 Several simple chemical tests are given to distinguish between the pair of compounds.
Which of the following pairs are correct?
(I) Propanal and propanone \({\mathrm{\rightarrow}}\) Silver mirror test
(II) Acetophenone and benzophenone \({\mathrm{\rightarrow}}\) Iodoform test
(III)Ethanal and propanal \({\mathrm{\rightarrow}}\) Fehling's test
(IV)Benzoic acid and ethylbenzoate \({\mathrm{\rightarrow}}\) Sodium bicarbonate test

1 I, II and III
2 I, II and IV
3 II and IV
4 I, II, III and IV
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323902 A compound with molecular formula \(\mathrm{C}_{4} \mathrm{H}_{10} \mathrm{O}_{3}\) is converted by the action of acetyl chloride to a compound of molecular mass 190. The original compound \(\left(\mathrm{C}_{4} \mathrm{H}_{10} \mathrm{O}_{3}\right)\) has

1 two OH groups
2 four OH groups
3 one OH group
4 three OH groups.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323903 An organic compound has an empirical formula \(\mathrm{C}_{5} \mathrm{H}_{10} \mathrm{O}\). This liquid gives a pale yellow precipitate on warming with iodine in alkaline KI solution. The resulting salt upon acidification gives an acid which easily undergoes decarboxylaction on mild heating. The structural formula of the organic liquid could be

1 \(\mathrm{CH}_{3} \mathrm{COCH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{3}\)
2 \(\mathrm{H}_{2} \mathrm{C}=\mathrm{CHCH}_{2} \mathrm{CH}(\mathrm{OH}) \mathrm{CH}_{3}\)
3 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CHO}\)
4 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{OCH}=\mathrm{CH}_{2}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323904 The end product \(C\) in the following sequence of chemical reactions is
supporting img

1 acetaldehyde oxime
2 formaldehyde oxime
3 methyl nitrate
4 acetoxime
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323905 supporting img
In the above chemical reaction sequence , A and B respectively are

1 \(\mathrm{H}_{2} \mathrm{O}, \mathrm{H}^{+}\)and \(\mathrm{KMnO}_{4}\)
2 \(\mathrm{O}_{3}, \mathrm{Zn} / \mathrm{H}_{2} \mathrm{O}\) and \(\mathrm{KMnO}_{4}\)
3 \(\mathrm{H}_{2} \mathrm{O}, \mathrm{H}^{+}\)and NaOH (alc.) \(/ \mathrm{I}_{2}\)
4 \(\mathrm{O}_{3}, \mathrm{Zn} / \mathrm{H}_{2} \mathrm{O}\) and NaOH (alc.) \(/ \mathrm{I}_{2}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323901 Several simple chemical tests are given to distinguish between the pair of compounds.
Which of the following pairs are correct?
(I) Propanal and propanone \({\mathrm{\rightarrow}}\) Silver mirror test
(II) Acetophenone and benzophenone \({\mathrm{\rightarrow}}\) Iodoform test
(III)Ethanal and propanal \({\mathrm{\rightarrow}}\) Fehling's test
(IV)Benzoic acid and ethylbenzoate \({\mathrm{\rightarrow}}\) Sodium bicarbonate test

1 I, II and III
2 I, II and IV
3 II and IV
4 I, II, III and IV
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323902 A compound with molecular formula \(\mathrm{C}_{4} \mathrm{H}_{10} \mathrm{O}_{3}\) is converted by the action of acetyl chloride to a compound of molecular mass 190. The original compound \(\left(\mathrm{C}_{4} \mathrm{H}_{10} \mathrm{O}_{3}\right)\) has

1 two OH groups
2 four OH groups
3 one OH group
4 three OH groups.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323903 An organic compound has an empirical formula \(\mathrm{C}_{5} \mathrm{H}_{10} \mathrm{O}\). This liquid gives a pale yellow precipitate on warming with iodine in alkaline KI solution. The resulting salt upon acidification gives an acid which easily undergoes decarboxylaction on mild heating. The structural formula of the organic liquid could be

1 \(\mathrm{CH}_{3} \mathrm{COCH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{3}\)
2 \(\mathrm{H}_{2} \mathrm{C}=\mathrm{CHCH}_{2} \mathrm{CH}(\mathrm{OH}) \mathrm{CH}_{3}\)
3 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CHO}\)
4 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{OCH}=\mathrm{CH}_{2}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323904 The end product \(C\) in the following sequence of chemical reactions is
supporting img

1 acetaldehyde oxime
2 formaldehyde oxime
3 methyl nitrate
4 acetoxime
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323905 supporting img
In the above chemical reaction sequence , A and B respectively are

1 \(\mathrm{H}_{2} \mathrm{O}, \mathrm{H}^{+}\)and \(\mathrm{KMnO}_{4}\)
2 \(\mathrm{O}_{3}, \mathrm{Zn} / \mathrm{H}_{2} \mathrm{O}\) and \(\mathrm{KMnO}_{4}\)
3 \(\mathrm{H}_{2} \mathrm{O}, \mathrm{H}^{+}\)and NaOH (alc.) \(/ \mathrm{I}_{2}\)
4 \(\mathrm{O}_{3}, \mathrm{Zn} / \mathrm{H}_{2} \mathrm{O}\) and NaOH (alc.) \(/ \mathrm{I}_{2}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323901 Several simple chemical tests are given to distinguish between the pair of compounds.
Which of the following pairs are correct?
(I) Propanal and propanone \({\mathrm{\rightarrow}}\) Silver mirror test
(II) Acetophenone and benzophenone \({\mathrm{\rightarrow}}\) Iodoform test
(III)Ethanal and propanal \({\mathrm{\rightarrow}}\) Fehling's test
(IV)Benzoic acid and ethylbenzoate \({\mathrm{\rightarrow}}\) Sodium bicarbonate test

1 I, II and III
2 I, II and IV
3 II and IV
4 I, II, III and IV
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323902 A compound with molecular formula \(\mathrm{C}_{4} \mathrm{H}_{10} \mathrm{O}_{3}\) is converted by the action of acetyl chloride to a compound of molecular mass 190. The original compound \(\left(\mathrm{C}_{4} \mathrm{H}_{10} \mathrm{O}_{3}\right)\) has

1 two OH groups
2 four OH groups
3 one OH group
4 three OH groups.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323903 An organic compound has an empirical formula \(\mathrm{C}_{5} \mathrm{H}_{10} \mathrm{O}\). This liquid gives a pale yellow precipitate on warming with iodine in alkaline KI solution. The resulting salt upon acidification gives an acid which easily undergoes decarboxylaction on mild heating. The structural formula of the organic liquid could be

1 \(\mathrm{CH}_{3} \mathrm{COCH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{3}\)
2 \(\mathrm{H}_{2} \mathrm{C}=\mathrm{CHCH}_{2} \mathrm{CH}(\mathrm{OH}) \mathrm{CH}_{3}\)
3 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CHO}\)
4 \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{OCH}=\mathrm{CH}_{2}\)
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323904 The end product \(C\) in the following sequence of chemical reactions is
supporting img

1 acetaldehyde oxime
2 formaldehyde oxime
3 methyl nitrate
4 acetoxime
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS

323905 supporting img
In the above chemical reaction sequence , A and B respectively are

1 \(\mathrm{H}_{2} \mathrm{O}, \mathrm{H}^{+}\)and \(\mathrm{KMnO}_{4}\)
2 \(\mathrm{O}_{3}, \mathrm{Zn} / \mathrm{H}_{2} \mathrm{O}\) and \(\mathrm{KMnO}_{4}\)
3 \(\mathrm{H}_{2} \mathrm{O}, \mathrm{H}^{+}\)and NaOH (alc.) \(/ \mathrm{I}_{2}\)
4 \(\mathrm{O}_{3}, \mathrm{Zn} / \mathrm{H}_{2} \mathrm{O}\) and NaOH (alc.) \(/ \mathrm{I}_{2}\)