`H_(3)C- underset(underset(CH_(3))(|))(CH) - CH_(2) - underset(underset(CH_(3))(|))(CH) - underset(underset(CH_(3))(|))(CH) - CH_(3)`
(i) 2, 3, 5- Trimethyl hexane and
(ii) 2, 4, 5-Trimethyl hexane which name is correct ? Why?

Explanation

(i) Name is correct. Because in (i) the substitution order is low then (ii) order. In first (i) is 2, 3 and in second is 2, 4 so, 2, 3 order is low