Aldehydes Ketones and Carboxylic Acids Test

Result

Aldehydes Ketones and Carboxylic Acids Test - 58

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

Which will undergo Friedel-Crafts alkylation reaction?

A

B

C

D

Solution

Friedel craft alkylation will undergo by that aromatic compound, which is electron rich. As it is the electrophillic substitution reaction.
Question 2
1 / -0

Which of the following reaction end with the same product?

A
a, b, c

B
a, c

C
b, c

D
a, b
Question 3
1 / -0

Which is the correct method of synthesising acetamide from acetone?

A
$$CH_3COCH_3\xrightarrow{Pd/BaSO_4}CH_3CHO\xrightarrow{NH_3}CH_3CH_2NH_2\xrightarrow{H_2O}CH_3CONH_2$$

B
$$CH_3COCH_3\xrightarrow[NaOH]{I_2}CH_3COONa\xrightarrow[NH_3]{H^+}CH_3COONH_4\xrightarrow{\Delta}CH_3CONH_2$$

C
$$CH_3COCH_3\xrightarrow{CrO_3}CH_3COOH\xrightarrow{NH_3}CH_3CONH_2$$

D
$$CH_3COCH_3\xrightarrow [NaOH]{I_2}CH_3COOH\xrightarrow {HCl}CH_3COCl\xrightarrow {NH_3}CH_3CONH_2$$

Solution

The best answer is B
1. $$Pd/Baso_4$$ cannot react with the ketone.
3 . in last step heating is required
4 . reaction of acid with acid is not possible.
Question 4
1 / -0

The final product $$(Y)$$ in the following sequence of chemical reaction is:
$$CH_3OH\xrightarrow[300^oC]{Cu} X \xrightarrow{NaOH} Y + CH_3OH$$

A
an alkene

B
a carboxylic acid

C
an aldehyde

D
sodium salt of carboxylic acid

Solution

$$CH_3OH \xrightarrow[300^oC]{Cu} {\underset{(X)}{HC}HO}\xrightarrow{NaOH}\underset{(Y)}{HCOONa}+CH_3OH$$

First reaction is oxidation reaction.

Second step the Cannizzaro reaction takes place.

Option D is correct.
Question 5
1 / -0

The addition of $$HCN$$ to carbonyl compounds is an example of:

A
nucleophilic addition

B
electrophilic addition

C
free radical addition

D
electromeric addition

Solution

$$HCN$$ breaks and form $$CN^-$$ ion and act as a nucleophile.
$$CN^-$$ attacks at carbonyl part, so it's a nucleophilic addition reaction.
Question 6
1 / -0

Acetic acid is obtained when:

A
methyl alcohol is oxidised with potassium permanganate

B
calcium acetate is distilled in the presence of calcium formate

C
acetaldehyde is oxidised with potassium dichromate and sulphuric acid

D
glycerol is heated with sulphuric acid

Solution

On oxidation of Acetaldehyde with oxidizing agents such as $${ K }_{ 2 }{ Cr }_{ 2 }{ O }_{ 7 }$$ or $$KMn{ O }_{ 4 }$$ gives acetic acid.
Acetic acid is obtained when acetaldehyde is oxidized with potassium dichromate and sulphuric acid.
Question 7
1 / -0

Which of the following would be the best synthesis of $$2, 2-dimethyl$$ propanoic acid?

A

B

C

D

Solution
Question 8
1 / -0

$$CH_3-CH=CH-CHO \xrightarrow[\Delta]{OH^{\circleddash}/H_2O}$$
The major product which can be isolated from this reaction is:

A
$$CH_3COOH$$

B
$$CH_3CHO$$

C
$$CH_3CH_2OH$$

D
Question 9
1 / -0

Identify $$(X)$$ and $$(Y)$$ in the given reaction sequence.

A

B

C

D
Question 10
1 / -0

In the above scheme of reactions, $$"X"$$ is ?

A

B

C

D

Solution