Class-12th Subject- Chemistry
Unit-08 - Aldehyde, Ketone & Carboxylic acid
10 Year Question for class 12 MP Board Students
2013
1. Following product are obtained
(i) Formic Acid from Acidic Acid
(ii) Acidaldehyde from Acetylene
OR
Explain preparation of Acidic Acid by quick vinegar process with
diagrams
2014
Explain following chemical reaction
(i) Clennsen Condensation (ii) Benzoin Condensation
OR
Explain preparation of Acetone by laboratory method with
diagrams & Chemical reaction
2015
1. Explain following chemical reaction
(i) Canizzaro reaction (ii) Perkin reaction
OR
Following product are obtained
(i) methanal from ethanal
(ii) Acidaldehyde from Acetyl chloride
2016
1 Explain preparation of Acidic Acid by quick vinegar process
with
(i) Diagrams (ii) Method (iii) Chemical reaction (iv) Precaution
OR
What happed that
(i) Acetyl chloride reduction with hydrogen in presence of Pd/
BaSO4
(ii) Benzaldehyde boil with 45% NaOH
(iii) Ammonia reacts with formaldehyde
(iv) Acetic Acid reacts with PCl5
2017
1. Write short note on following
(i) Perkin Reaction (ii) Urotropine
OR
What happen when (give only equations)
(i) Acetone reacts with conc. H2SO4
(ii) Benzoic acid reacts with SOCl2
(iii) Acetic acid reacts with ammonia
(iv) Acetic acid reacts with caustic soda
2018
1. How will you obtained from Acetic acid
(i) Acetic anhydride (ii) Ethyl Acetate
(iii) Trichloroacetic acid (iv) Acetyl Chloride
OR
How will you obtained following
compound from benzaldehyde
(i) Cinnamaldehyde (ii) Benzoin
(iii) Cinnamic Acid (iv) Benzoyl Chloride
2019
What happen when?
Reduction of ethanal takes place
(i) Clemmensen (ii) Wulf-Kishner
(iii) By LiAlH4 (iv) By Na-Hg/H2O
OR
Write the chemical equation for the following reaction
(i) Sandmeyer reaction (ii) Stephen reaction
(iii) Hoffmann Bromide reaction (iv) Haloform reaction
2020
1. Explain following reaction
(i) Etard reaction
(ii) Gattermann reaction
(iii) Aldol condensation
Or
(i)
Explain Caizzaro reaction
(ii)
Write silver mirror test for identification of aldehyde
2021
1. Write
difference between aldehyde and ketone
|
S N |
Test |
Aldehyde |
Ketone |
|
1 |
Tollen's Reagent |
Silver mirror is obtained |
No reaction |
|
2 |
Fehling's Solution |
Formation of a reddish-brown colour
precipitate |
No reaction (Except alpha hydroxy ketone) |
|
3 |
Reduced by LiAlH4 |
Form primary alcohols |
Form secondary alcohols with difficulty |
|
4 |
Reaction with alcohol in the presence of
dry HCl |
Form acetal |
Form ketal with difficulty |
|
5 |
Schiff's reagent |
The pink colour is obtained |
No reaction |
|
6 |
Chromic Acid |
Gives a green to blue precipitate. |
No reaction |
|
7 |
Sodium Nitroprusside Test |
No reaction |
The red colouration |
OR
1. Explain following reaction
(i) Rosenmund Reaction (ii) Perkin Reaction
2022
1.Write
the IUPAC name of following compound
CH3CH(CH3)CH2CH2CHO
CH3CH=CHCHO
(CH3)3CCH2COOH
OR
2.Write chemical equation of the following
reaction
Perkin
rection
Cannizaro
reaction
Rosenmund
reaction
2023
1.Write the Etard reaction with chemical equation OR
Write to uses of
carboxylic acid
Uses of Carboxylic
Acid
Carboxylic acids are used in a variety of industries. In
the food industry, carboxylic acids are used as food additives and flavorings.
In the pharmaceutical industry, carboxylic acids are used as active ingredients
in medications. In the personal care industry, carboxylic acids are used in
skin care products.
OR
Write the structure of
following compound
(i) 4-chloro-2,3 dimethyl pentane-1-ol
(ii) 2-ethoxy propane
(iii) 2,6 dimethyl phenol

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