323684
Assertion : Benzaldehydes do not give positive Fehling test. Reason : Aldehydes give positive Tollen's test.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Both assertion and reason are correct but reason is not correct explanation of assertion.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323685
Benzaldehyde and acetone can be best distinguished using
1 Tollen's reagent
2 Fehling's solution
3 Sodium hydroxide solution
4 2, 4-DNP
Explanation:
Benzaldehyde is a weak reducing agent. It reduce ammonical silver nitrate solution and gives silver mirror test. \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CHO}+\mathrm{Ag}_{2} \mathrm{O} \rightarrow 2 \mathrm{Ag} \downarrow+\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{COOH}\) Acetone is not easily oxidised and hence, does not give the Tollens' test.
KCET - 2010
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323686
Which of the following compounds on reaction with ammoniacal silver nitrate solution form precipitate of silver?
1 Ethanal
2 Ethanoic acid
3 Ethanol
4 Ethoxy ethane
Explanation:
Silver mirror test or Tollen's test is given by only aldehydes. Hence, ethanal on reaction with ammoniacal silver nitrate solution (Tollen's reagent) forms precipitate of silver.
MHTCET - 2021
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323687
\(\mathrm{CH}_{3} \mathrm{CHO}\) and \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}_{2} \mathrm{CHO}\) can be distinguished chemically by
1 Benedict's test
2 Iodoform test
3 Tollen's reagent test
4 Fehling's solution test
Explanation:
\(\mathrm{CH}_{3} \mathrm{CHO}\) will give positive iodoform test as it has \(\mathrm{CH}_{3} \mathrm{CO}-\) but not \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}_{2} \mathrm{CHO}\)
323684
Assertion : Benzaldehydes do not give positive Fehling test. Reason : Aldehydes give positive Tollen's test.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Both assertion and reason are correct but reason is not correct explanation of assertion.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323685
Benzaldehyde and acetone can be best distinguished using
1 Tollen's reagent
2 Fehling's solution
3 Sodium hydroxide solution
4 2, 4-DNP
Explanation:
Benzaldehyde is a weak reducing agent. It reduce ammonical silver nitrate solution and gives silver mirror test. \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CHO}+\mathrm{Ag}_{2} \mathrm{O} \rightarrow 2 \mathrm{Ag} \downarrow+\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{COOH}\) Acetone is not easily oxidised and hence, does not give the Tollens' test.
KCET - 2010
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323686
Which of the following compounds on reaction with ammoniacal silver nitrate solution form precipitate of silver?
1 Ethanal
2 Ethanoic acid
3 Ethanol
4 Ethoxy ethane
Explanation:
Silver mirror test or Tollen's test is given by only aldehydes. Hence, ethanal on reaction with ammoniacal silver nitrate solution (Tollen's reagent) forms precipitate of silver.
MHTCET - 2021
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323687
\(\mathrm{CH}_{3} \mathrm{CHO}\) and \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}_{2} \mathrm{CHO}\) can be distinguished chemically by
1 Benedict's test
2 Iodoform test
3 Tollen's reagent test
4 Fehling's solution test
Explanation:
\(\mathrm{CH}_{3} \mathrm{CHO}\) will give positive iodoform test as it has \(\mathrm{CH}_{3} \mathrm{CO}-\) but not \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}_{2} \mathrm{CHO}\)
323684
Assertion : Benzaldehydes do not give positive Fehling test. Reason : Aldehydes give positive Tollen's test.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Both assertion and reason are correct but reason is not correct explanation of assertion.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323685
Benzaldehyde and acetone can be best distinguished using
1 Tollen's reagent
2 Fehling's solution
3 Sodium hydroxide solution
4 2, 4-DNP
Explanation:
Benzaldehyde is a weak reducing agent. It reduce ammonical silver nitrate solution and gives silver mirror test. \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CHO}+\mathrm{Ag}_{2} \mathrm{O} \rightarrow 2 \mathrm{Ag} \downarrow+\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{COOH}\) Acetone is not easily oxidised and hence, does not give the Tollens' test.
KCET - 2010
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323686
Which of the following compounds on reaction with ammoniacal silver nitrate solution form precipitate of silver?
1 Ethanal
2 Ethanoic acid
3 Ethanol
4 Ethoxy ethane
Explanation:
Silver mirror test or Tollen's test is given by only aldehydes. Hence, ethanal on reaction with ammoniacal silver nitrate solution (Tollen's reagent) forms precipitate of silver.
MHTCET - 2021
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323687
\(\mathrm{CH}_{3} \mathrm{CHO}\) and \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}_{2} \mathrm{CHO}\) can be distinguished chemically by
1 Benedict's test
2 Iodoform test
3 Tollen's reagent test
4 Fehling's solution test
Explanation:
\(\mathrm{CH}_{3} \mathrm{CHO}\) will give positive iodoform test as it has \(\mathrm{CH}_{3} \mathrm{CO}-\) but not \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}_{2} \mathrm{CHO}\)
323684
Assertion : Benzaldehydes do not give positive Fehling test. Reason : Aldehydes give positive Tollen's test.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
Both assertion and reason are correct but reason is not correct explanation of assertion.
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323685
Benzaldehyde and acetone can be best distinguished using
1 Tollen's reagent
2 Fehling's solution
3 Sodium hydroxide solution
4 2, 4-DNP
Explanation:
Benzaldehyde is a weak reducing agent. It reduce ammonical silver nitrate solution and gives silver mirror test. \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CHO}+\mathrm{Ag}_{2} \mathrm{O} \rightarrow 2 \mathrm{Ag} \downarrow+\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{COOH}\) Acetone is not easily oxidised and hence, does not give the Tollens' test.
KCET - 2010
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323686
Which of the following compounds on reaction with ammoniacal silver nitrate solution form precipitate of silver?
1 Ethanal
2 Ethanoic acid
3 Ethanol
4 Ethoxy ethane
Explanation:
Silver mirror test or Tollen's test is given by only aldehydes. Hence, ethanal on reaction with ammoniacal silver nitrate solution (Tollen's reagent) forms precipitate of silver.
MHTCET - 2021
CHXII12:ALDEHYDES KETONES AND CARBOXYLIC ACIDS
323687
\(\mathrm{CH}_{3} \mathrm{CHO}\) and \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}_{2} \mathrm{CHO}\) can be distinguished chemically by
1 Benedict's test
2 Iodoform test
3 Tollen's reagent test
4 Fehling's solution test
Explanation:
\(\mathrm{CH}_{3} \mathrm{CHO}\) will give positive iodoform test as it has \(\mathrm{CH}_{3} \mathrm{CO}-\) but not \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{CH}_{2} \mathrm{CHO}\)
