After heating, the product formed by the reaction of propanal with 2-methylpropanal in the presence of dilution NaOH is:
1. | |
2. | |
3. | Both products mentioned in options (1) and (2) |
4. | None of the above |
An organic compound (A) (molecular formula (C8H16O2) gives a carboxylic acid (B) upon hydrolysis by dilute sulphuric acid and an alcohol (C). Oxidation of(C) with chromic acid produces(B). (C) on dehydration gives but-1-ene. Compound B is:
1. | Butanoic acid | 2. | Propanoic acid |
3. | Butanol | 4. | Propanoic acid |
Phthalic acid on heating with SOCl2 gives:
1. | Phthalic anhydride | 2. | Phthalamide |
3. | Phthaloyl chloride | 4. | None of the above |
An organic compound (A) contains 69.77% carbon, 11.63% hydrogen, and rest oxygen. The molecular mass of the compound is 86. It does not reduce Tollens’ reagent but forms an addition compound with sodium hydrogen sulphite and gives a positive iodoform test. On vigorous oxidation, it gives ethanoic and propanoic acid. Compound A would be:
1. Pentan-2-one
2. Butanone
3. 3-Methylbutanone
4. Propan-2-ol
The correct sequence of increasing orders of reactivity in nucleophilic addition reaction is:
1. Butanone < Propanone < Propanal < Ethanal
2. Butanone > Propanone > Propanal > Ethanal
3. Butanone < Propanal < Propanone < Ethanal
4. Propanal < Propanone < Ethanal < Butanone
Cannizzaro’s reaction is not given by:
1. | 2. | ||
3. | HCHO | 4. | CH3CHO |
The compound below is treated with a concentrated aqueous KOH solution. The products obtained are:
1. | |
2. | |
3. | |
4. |
What is the most suitable reagent for the below mentioned conversion?
1. Tollens' reagent
2. Benzoyl peroxide
3. and NaOH solution
4. Sn and NaOH solution
The conversions can be used for Clemmensen reduction are:
a. Benzaldehyde into benzyl alcohol.
b. Cyclohexanone into cyclohexane.
c. Benzoyl chloride into benzaldehyde.
d. Benzophenone into diphenyl methane.
1. | a and b | 2. | b and c |
3. | c and d | 4. | b and d |
Match the common names given in Column I with the IUPAC names given in Column II.
Column l (Common names) |
Column ll (IUPAC names) |
A. Cinnamaldehyde | 1. Pentanal |
B. Acetophenone | 2. Prop-2-enal |
C. Valeraldehyde | 3. 1-phenylethanone |
D. Acrolein | 4. 3-Phenylprop-2-en-al |
Codes
A | B | C | D | |
1. | 2 | 3 | 4 | 1 |
2. | 3 | 1 | 4 | 2 |
3. | 1 | 4 | 3 | 2 |
4. | 4 | 3 | 1 | 2 |