A few reactions are given below:
i. | \(\small{\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_2 \mathrm{Br}+\mathrm{KOH} \rightarrow \mathrm{CH}_3 \mathrm{CH}=\mathrm{CH}_2+\mathrm{KBr}+\mathrm{H}_2 \mathrm{O}}\) |
ii. | |
iii. |
(i) | (ii) | (iii) | |
1. | Elimination | Substitution | Addition |
2. | Elimination | Substitution | Substitution |
3. | Substitution | Addition | Addition |
4. | Elimination | Elimination | Addition |
Which of the following biphenyls is optically active?
1. | |
2. | |
3. | |
4. |
When hydrolyzed with aqueous KOH, compounds that undergoes racemization are:
(i) | (ii) | CH3CH2CH2Cl | |
(iii) | (iv) |
1. | (i) and (ii) | 2. | (ii) and (iv) |
3. | (iv) only | 4. | (i) and (iv) |
The end product (C) in the below-mentioned reaction is:
\(H_3C-Br\xrightarrow{\bf KCN }A\xrightarrow{ \bf H_3O^+~~}B\xrightarrow[\bf\text{Ether}]{~~LiAlH_4~~}C\)
The correct order of increasing C-X bond reactivity toward nucleophiles among the following is:
I | II | ||
III | \(\left(\mathrm{CH}_3\right)_3 \mathrm{C}-\mathrm{X}\) | IV | \(\left(\mathrm{CH}_3\right)_2 \mathrm{CH}-\mathrm{X}\) |
1. | I < II < IV < III | 2. | II < III < I < IV |
3. | IV < III < I < II | 4. | III < II < I < IV |
Which of the following reactions cannot form new carbon-carbon bonds?
1. Reimer-Tiemann reaction
2. Cannizaro reaction
3. Wurtz reaction
4. Friedel-Crafts acylation
1. | |
2. | |
3. | |
4. |
Which compound in each of the following pairs will react faster in an \(S_N 2\) reaction with the −OH group?
\(\mathrm{CH}_3 \mathrm{Br}\) or \(\mathrm{CH}_3 \mathrm{I}\)
(ii) \(\left(\mathrm{CH}_3\right)_3 \mathrm{CCl}\) or \(\mathrm{CH}_3 \mathrm{Cl}\)
Mark the correct option:
1. (i) \(\mathrm{CH}_3 \mathrm{Br}\) and (ii) \(\left(\mathrm{CH}_3\right)_3 \mathrm{CCl}\)
2. (i) \(\mathrm{CH}_3 \mathrm{I}\) and (ii) \(\mathrm{CH}_3 \mathrm{Cl}\)
3. (i) \(\mathrm{CH}_3 \mathrm{Br}\) and (ii) \(\mathrm{CH}_3 \mathrm{Cl}\)
4. (i)\(\mathrm{CH}_3 \mathrm{I}\)and (ii) \(\left(\mathrm{CH}_3\right)_3 \mathrm{CCl}\)
Given the following reaction:
The structure of the major product is:
1. | |
2. | |
3. | |
4. |
Which of the following compounds are optically active?
(i).
(ii).
(iii).
(iv).
1. (i) & (ii)
2. (i) & (iii)
3. (ii) & (iii)
4. (i) & (iv)