Answer:
Alkanes are very reactive: False.
Step-by-step explanation:
Alkanes are the most non reactive class of organic compounds among all other kind of organic compounds like alkene, alkyne, alchol, alkyl halide, carbonyl compounds, amine etc.
These are non reactive due to absence of any multiple bond or hetero atom or any functional group and so have not polarity in them which can bring reactivity in them.