The aromatic compound among the following is :
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Which of the following carbocations is the most stable?
1. | 2. | \(\mathrm{(CH}_3){ }_3 \stackrel{\oplus}{\mathrm{C}}\) | |
3. | \(\mathrm{CH}_2=\mathrm{CH}-\stackrel{\oplus}{\mathrm{C}\mathrm{H}_2}\) | 4. | \(\left(\mathrm{CH}_3\right)_2 \stackrel{\oplus}{\mathrm{C H}}\) |
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How many chiral centers are present in 3,4-dibromo-2-pentanol?
1. 1
2. 2
3. 3
4. 4
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Which of the following compounds is an isomer of methyl vinyl ether?
1. Propanal
2. 1-Propanol
3. Ethyl methyl ether
4. Dimethylether
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Which of the following molecule have (2R,3-Z) configuration ?
1.
2.
3.
4.
Compound which is not isomeric with diethyl ether is :
1. Methyl-n-propyl ether
2. 1-Butanol
3. 2-Methyl-2-propanol
4. Butanone
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How many optical isomers are possible in this compound ?
1. 2
2. 3
3. 4
4. 5
How many optical isomers are possible in this compound ?
1. 2
2. 3
3. 4
4. 5
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The numbers of stereoisomers possible for is :
1. 32
2. 16
3. 14
4. 10