For the following confirmation of n-butane the decreasing order of stability can be given as

The maximum number of isomers (including stereoisomers) that are possible on monochlorination of the following compound is:

How many of the following compounds exhibit tautomerism ?

How many alcohols from the following set gives geometric isomers on dehydration?

1. propan$-2-$ol

2. $2-$methyl propan$-1-$ol

3. pentan$-2-$ol

4. ethanol

5. propan$-1-$ol

6. $2-$methyl propan$-2-$ol

7. butan$-1-$ol

8. butan$-2-$ol

9. hexan$-3-$ol

How many of the following compounds will not show stereoisomerism:

Find the total number of $\mathrm{C}-\mathrm{C}$ bonds of equal length in the dianion of squaric acid,