Q. No.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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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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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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Indicate whether each of the following pairs are identical, or enantiomers and diastereomers ?
|
|
I |
II |
III |
|
1. |
enantiomers |
diastereomers |
enantiomers |
|
2. |
identical |
enantiomers |
enantiomers |
|
3. |
enantiomers |
diastereomers |
identical |
|
4. |
enantiomers |
identical |
identical |
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