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Solution


Q.

The alkane from below having two secondary hydrogens is:                  [2025]
1 2,2,4,5-Tetramethylheptane  
2 2,2,3,3-Tetramethylpentane  
3 4-Ethyl-3,4-dimethyloctane  
4 2,2,4,4-Tetramethylhexane  

Ans.

(2)

Alkane Structure Number of 2° H
2,2,4,5-Tetramethylheptane 4
2,2,3,3-Tetramethylpentane 2
4-Ethyl-3,4-dimethyloctane 10
2,2,4,4-Tetramethylhexane 4