Products (A) and (B) in the given below reactions, respectively, are:
(A) | (B) | |
1. | ||
2. | ||
3. | ||
4. | None of the above |
How is m-Bromotoluene prepared?
1. | Bromination of toluene |
2. | Friedel Craft’s reaction of bromobenzene with CH3Cl |
3. | Bromination of nitrobenzene and subsequent replacement of –NO2 group with an ethyl group |
4. | Bromination of Aceto–p–toluidine followed by hydrolysis and deamination |
Which of the following molecules can readily undergo the SN2 mechanism?
1. | \(\left(\mathrm{CH}_3\right)_3 \mathrm{C}-\mathrm{Cl} \) | 2. | \(\mathrm{CH}_2=\mathrm{CH}-\mathrm{Cl} \) |
3. | \(\mathrm{CH}_2=\mathrm{CH}-\mathrm{CH}_2-\mathrm{CH}_2 \mathrm{Cl}\) | 4. |
Sandmeyer's reaction described by among the following is:
1. | |
2. | |
3. | |
4. |
Which of the options is correct about product (A)?
1. Product is aromatic
2. Product has a high dipole moment
3. Product has less resonance energy
4. Both A and B
1. | |
2. | |
3. | |
4. |
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
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 |
The end product (C) in the below-mentioned reaction is:
\(H_3C-Br\xrightarrow{\bf KCN }A\xrightarrow{ \bf H_3O^+~~}B\xrightarrow[\bf\text{Ether}]{~~LiAlH_4~~}C\)
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) |