Question

give me answer of that all.

Answer 1

1.
number of product=1
interesting features= it is exothermic reaction .
type of reaction=combination reaction

2.
number of reactants=2
number of product=2
interesting features=when you will bring a candle flame near test tube you will listen pop sound that is of hydrogen

type of reaction= displacement reaction
displacement of hydrogen by zinc

hope it will help you