Which of the following statements is false for isopentane?

Which among the following reagents is used for the conversion of alkanes into an alcohol?

Which of the following reagents is used for the following reaction?
$CH_{3}CH_{2}CH_{3} \stackrel{?}{\longrightarrow} CH_{3}CH_{2}CHO$

Petroleum is mainly a mixture of

Which of the following formulas represents a saturated cyclic compound?

Given below are two statements:
Statement $I$: Methane can be prepared by decarboxylation of sodium ethanoate, Kolbe's electrolysis of sodium acetate and reaction of $CH_3MgBr$ with water.
Statement $II$: Methane cannot be prepared from unsaturated hydrocarbons and by Wurtz reaction.
In the light of the above statements, choose the correct answer from the options given below.