1. Which type of reaction has water in its products? a. Hydrolysis
b. Dehydration synthesis

2. What type of reaction uses water as a reactant?
a. Hydrolysis
b. Dehydration synthesis

1. b. Dehydration synthesis

2. a. Hydrolysis

Explanation:

Hydrolysis is the process where water is used to break chemical bonds. Dehydration synthesis is the reverse reaction, where a bond is formed resulting in the loss of water from the molecule, so a water molecule is generated as a product.

That means that dehydration synthesis produces water, and hydrolysis uses water.

b. Dehydration synthesis gives out  water as a product.

a. Hydrolysis reaction uses water as a reactant.  

Explanation:

b. Dehydration synthesis can be defined as, formation of  larger molecule from small reactant, followed by loss of water from the reaction.

a. Explanation: Hydrolysis, it is the reaction in which compound is interacted with water which results in the degradation of that particular compound.