Aldehydes, Ketones and Carboxylic Acids

Compound P(C8H8O) gives a red orange precipitate with 2,4-DNP reagent and it does not reduce Fehling's reagent. On drastic oxidation with chromic acid, P gives an aromatic product Q that produces effervescence on treating with aq. NaHCO3. Compounds P and Q, respectively, are :

1. P = [figure] ; Q = [figure]
2. P = [figure] ; Q = [figure]
3. P = [figure] ; Q = [figure]
4. P = [figure] ; Q = [figure]

Consider the following reaction, and choose the correct option. [figure]

1. Compound P is obtained by the hydrogenation of benzoyl chloride with Pd on BaSO4
2. On treating compound P with saturated NaHCO3 solution, brisk effervescence is observed
3. Compound P can be prepared by treating benzene with anhydrous AlCl3 and CH3COCl
4. On treating with bromine water, compound P gives a white precipitate

The compound that CANNOT be obtained from the aldol condensation reaction shown below, is [figure]

1. [figure]
2. [figure]
3. [figure]
4. [figure]

For the following reaction sequence, choose the correct option [figure]

1. Both P and Q are carbonyl compounds
2. If P is the sodium salt of a carboxylic acid, Q is a primary alcohol
3. P and Q are aromatic compounds
4. If P gives a carboxylic acid on acidification, Q gives a poisonous gas on exposure to air and light

Identify the suitable reagent for the following conversion. [figure]

1. (i) NaBH4, (ii) H+/H2O
2. H2/Pd-BaSO4
3. (i) LiAlH4, (ii) H+/H2O
4. (i) AlH(iBu)2, (ii) H2O

The correct order of decreasing acidity of the following aliphatic acids is

1. HCOOH > CH3COOH > (CH3)2CHCOOH > (CH3)3CCOOH
2. HCOOH > (CH3)3CCOOH > (CH3)2CHCOOH > CH3COOH
3. (CH3)3CCOOH > (CH3)2CHCOOH > CH3COOH > HCOOH
4. CH3COOH > (CH3)2CHCOOH > (CH3)3CCOOH > HCOOH

The major product of the following reaction is [figure]

1. [figure]
2. [figure]
3. [figure]
4. [figure]

Match List-I with List-II and choose the correct option.

1. A-II, B-IV, C-I, D-III
2. A-I, B-II, C-III, D-IV
3. A-IV, B-III, C-II, D-I
4. A-II, B-I, C-IV, D-III

Identify the correct reagents that would bring about the following transformation. [figure]

1. (i) H2O/H+, (ii) CrO3
2. (i) BH3, (ii) H2O2/OH , (iii) PCC
3. (i) BH3, (ii) H2O2/OH , (iii) alk. KMnO4
4. (i) H2O/H+, (ii) PCC

Fehling's solution 'A' is

1. aqueous copper sulphate
2. alkaline copper sulphate
3. alkaline solution of sodium potassium tartrate (Rochelle's salt)
4. aqueous sodium citrate

Match List I with List II. Choose the correct answer from the options given below:

1. A-IV, B-I, C-III, D-II
2. A-III, B-I, C-II, D-IV
3. A-IV, B-I, C-II, D-III
4. A-I, B-IV, C-II, D-III

Select the incorrect reaction among the following :

1. CH3COCl [ ]H2O CH3COOH
2. [figure]
3. CH3CH2OH [(ii) H3O ](i) KMnO4/OH- CH3COOH
4. CH3CH2CH2OH CrO3-H2SO4 CH3CH2COOH

Identify product (A) in the following reaction : [figure]

1. [figure]
2. [figure]
3. [figure]
4. [figure]

Complete the following reaction: [figure] [C] is .

1. [figure]
2. [figure]
3. [figure]
4. [figure]

Identify the major product obtained in the following reaction: [figure]

1. [figure]
2. [figure]
3. [figure]
4. [figure]

Given below are two statements : In the light of the above statements, choose the most appropriate answer from the options given below

1. Both Statement I and Statement II are correct
2. Both Statement I and Statement II are incorrect
3. Statement I is correct but Statement II is incorrect
4. Statement I is incorrect but Statement II is correct

RMgX + CO2 [ether]dry Y H3O+ RCOOH What is Y in the above reaction?

1. RCOO-Mg+X
2. R3CO-Mg+X
3. RCOO-X+
4. (RCOO)2Mg

Match List-I with List-II. Choose the correct answer from the options given below

1. (a) - (iii), (b) - (iv), (c) - (ii), (d) - (i)
2. (a) - (ii), (b) - (iii), (c) - (iv), (d) - (i)
3. (a) - (i), (b) - (iii), (c) - (ii), (d) - (iv)
4. (a) - (iv), (b) - (iii), (c) - (ii), (d) - (i)

Which one of the following is not formed when acetone reacts with 2-pentanone in the presence of dilute NaOH followed by heating?

1. [figure]
2. [figure]
3. [figure]
4. [figure]

Which of the following reactions is not an example for nucleophilic addition-elimination reaction?

1. CH3CHO + NH3 CH3CH=NH + H2O
2. CH3CHO + NaHSO3 CH3- H | OH |C-SO3Na
3. CH3CHO + NH2OH CH3CH=N-OH + H2O
4. CH3CHO + C6H5NHNH2 CH3CH=N-NHC6H5 + H2O

The product formed from the following reaction sequence is [figure]

1. [figure]
2. [figure]
3. [figure]
4. [figure]

The products A and B in the following reaction sequence are : [figure]

1. [figure]
2. [figure]
3. [figure]
4. [figure]

The incorrect method to synthesize benzaldehyde is

1. [figure] , CH3MgBr, followed by H3O+
2. [figure] , H2, Pd-BaSO4
3. [figure] , DIBAL-H, followed by H2O
4. [figure] , CrO2Cl2 in CS2, followed by H3O+

Match List-I with List-II Choose the correct answer from the options given below.

1. (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
2. (a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)
3. (a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)
4. (a)-(i), (b)-(iv), (c)-(iii), (d)-(ii)

The intermediate compound 'X' in the following chemical reaction is : [figure]

1. [figure]
2. [figure]
3. [figure]
4. [figure]

The product formed in the following chemical reaction is : [figure]

1. [figure]
2. [figure]
3. [figure]
4. [figure]

Identify compound X in the following sequence of reactions : [figure]

1. [figure]
2. [figure]
3. [figure]
4. [figure]

Reaction between benzaldehyde and acetophenone in presence of dilute NaOH is known as :

1. Cannizzaro's reaction
2. Cross Cannizzaro's reaction
3. Cross Aldol condensation
4. Aldol condensation

The major product of the following reaction is : [figure]

1. [figure]
2. [figure]
3. [figure]
4. [figure]

Compound A, C8H10O, is found to react with NaOI (produced by reacting Y with NaOH) and yields a yellow precipitate with characteristic smell. A and Y are respectively

1. [figure] and I2
2. [figure] and I2
3. [figure] and I2
4. [figure] and I2