मराठी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Assertion: Aldehydes and ketones, both react with Tollen’s reagent to form silver mirror. Reason: Both, aldehydes and ketones contain a carbonyl group. - Chemistry

Advertisements
Advertisements

प्रश्न

Assertion: Aldehydes and ketones, both react with Tollen’s reagent to form silver mirror.

Reason: Both, aldehydes and ketones contain a carbonyl group.

पर्याय

  • Assertion and reason both are correct and reason is correct explanation of assertion.

  • Assertion and reason both are wrong statements.

  • Assertion is correct statement but reason is wrong statement.

  • Assertion is wrong statement but reason is correct statement.

  • Assertion and reason both are correct statements but reasson is not correct explanation of assertion.

MCQ
Advertisements

उत्तर

Assertion is wrong statement but reason is correct statement.

Explanation:

The silver mirror test can be used to determine Tollen's. \[\ce{[Ag(NH2)2]+ OH-}\]. Only aldehydes, not ketones, react with Tollen's reagent to create silver.

A silver mirror test is not given with this affirmative test.

The carbonyl group is present in both aldehyde and ketone.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 12: Aldehydes, Ketones and Carboxylic Acids - Multiple Choice Questions (Type - I) [पृष्ठ १७६]

APPEARS IN

एनसीईआरटी एक्झांप्लर Chemistry [English] Class 12
पाठ 12 Aldehydes, Ketones and Carboxylic Acids
Multiple Choice Questions (Type - I) | Q 46 | पृष्ठ १७६

संबंधित प्रश्‍न

On acid hydrolysis, propane nitrile gives.


How is carbolic acid prepared from chlorobenzene?


Write the structures of A and B in the following reactions


Name the reagents used in the following reactions:


Show how the following compound can be converted to benzoic acid.

Acetophenone


Show how the following compound can be converted to benzoic acid.

Bromobenzene


Predict the products formed when cyclohexanecarbaldehyde reacts with the following reagent.

Tollens’ reagent


How will you prepare the given compound from benzene? You may use any inorganic reagent and any organic reagent having not more than one carbon atom.

Methyl benzoate


How will you prepare the given compound from benzene? You may use any inorganic reagent and any organic reagent having not more than one carbon atom.

m-Nitrobenzoic acid


How will you prepare the given compound from benzene? You may use any inorganic reagent and any organic reagent having not more than one carbon atom.

p-Nitrobenzoic acid


How will you bring about the following conversion in not more than two steps?

Benazaldehyde to α-Hydroxyphenylacetic acid


How is methoxy benzene prepared from carbolic acid?


The functional group present in triacylglycerol is _______.


The reagent which does not react with both, acetone and benzaldehyde.


Through which of the following reactions number of carbon atoms can be increased in the chain?

(i) Grignard reaction

(ii) Cannizaro’s reaction

(iii) Aldol condensation

(iv) HVZ reaction


Which of the following substance produced acetaldehyde on dry distillation?


Match List - I with List - II.

List - I List - II
(a) \[\ce{->[CO,HCl][Anhyd. AlCl3/CuCl]}\] (i) Hell-Volhard-Zelinsky reaction
(b)
\[\begin{array}{cc}
\ce{O}\phantom{.................}\\
||\phantom{.................}\\
\ce{R - C - CH3 + NaOX ->}
\end{array}\]
(ii) Gattermann-Koch reaction
(c) \[\ce{R - CH2 - OH + R'COOH ->[Conc. H2SO4]}\] (iii) Haloform reaction
(d) \[\ce{R - CH2COOH ->[(i) X2/Red P][(ii) H2O]}\] (iv) Esterification

Choose the correct answer from the options given below.


Alkaline hydrolysis of C4H8Cl2 gives a compound (A) which on heating with NaOH and I2 produces a yellow precipitate of CHI3. The compound (A) should be ______.


A compound 'X' with molecular formula C3H8O can be oxidised to a compound 'Y' with the molecular formula C3H6O2 'X' is most likely to be ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×