Organic Chemistry – Some Basic Principles and Techniques

In the given structure, number of sp and sp2 hybridized carbon atoms present respectively are : [figure]

1. 3 and 5
2. 3 and 6
3. 4 and 5
4. 4 and 6

The hydrocarbon (X) with molar mass 80 g mol-1 and 90\% carbon has degree of unsaturation.

The correct stability order of the following species/molecules is : [figure]

1. q > r > p
2. q > p > r
3. p > q > r
4. r > q > p

The IUPAC name of the following compound is : [figure]

1. 5-Methoxycarbonyl-2-methylhexanoic acid
2. Methyl-5-carboxy-2-methylhexanoate.
3. 2-Carboxy-5-methoxycarbonylhexane.
4. Methyl-6-carboxy-2,5-dimethylhexanoate.

The most stable carbocation from the following is :

1. [figure]
2. [figure]
3. [figure]
4. [figure]

The alkane from below having two secondary hydrogens is :

1. 2,2,4,5-Tetramethylheptane
2. 2,2,4,4-Tetramethylhexane
3. 4-Ethyl-3,4-dimethyloctane
4. 2,2,3,3-Tetramethylpentane