The formula for allyl alcohol is-
1. CH3-CH=CHOH
2. CH2=CHCH2OH
3. HOCH2CH2CH3
4. None of the above.
Match the structures of the compounds given in Column I with the name of the compounds given in Column II.
Column I(Structure) | Column II(Name) | ||
A. | (i). | Phenetole | |
B. | (ii). | o-Cresol | |
C. | (iii). | Catechol | |
D. | (iv). | Resorcinol |
Codes:
A | B | C | D | |
1. | (ii) | (iv) | (i) | (iii) |
2. | (iii) | (i) | (iv) | (ii) |
3. | (i) | (iv) | (iii) | (ii) |
4. | (iv) | (iii) | (ii) | (i) |
Select the correct option based on statements below:
Assertion (A): | The IUPAC name of the compoundis 2-ethoxy-2-methylethane. |
Reason (R): | In IUPAC nomenclature, ether is regarded as a hydrocarbon derivative in which a hydrogen atom is replaced by —OR or -OAr group [where, R = alkyl group and Ar = aryl group]. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | (A) is False but (R) is True. |
The product A in the below mentioned reaction is:
\(\xrightarrow[]{H_{2}O/H^{+}} \ \underset{(major)}{A} \ + \ \underset{(minor)}{B}\)
1. | |
2. | |
3. | 4. | |
The value of C-O-C bond angle in ether molecule is:
1. | 180° | 2. | 150° |
3. | 90° | 4. | 110° |
Select the correct option based on the statements below:
Assertion (A): | The bond angle in ethers is slightly less than the angle of tetrahedral. |
Reason (R): | There is repulsion between the two bulky (— R) groups. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | (A) is False but (R) is True. |
The proposed mechanism for hydration of ethene to yield ethanol is as follows:
The wrong step in the above mechanism is:
1. | Step 1 | 2. | Step 2 |
3. | Step 3 | 4. | Both steps 2 and 3 |
Propan-1-ol may be prepared by reaction of propene with -
1. CH3COOH
2. H3BO3
3. B2H6/NaOH-H2O2
4. H2SO4/H2O
1. | \(\mathrm{NaBH}_4 \) | 2. | \(\mathrm{LiAlH}_4 \) |
3. | \(PCC \) | 4. | \(\mathrm{KMnO}_4\) |
The reducing agent among the following is -
1. CrO3/H+
2. KMnO4
3. LiAlH4
4. O3