Question

A synthesis reaction is a reaction between at least two compounds in which

Answer 1

D; a new compound is formed (like A + B --> AB)

Answer 2

Answer: d. a new compound is formed.

Explanation:

1. Decomposition is a type of chemical reaction in which one reactant gives two or more than two products.

Example: $Li_2CO_3\rightarrow Li_2O+CO_2$

2. Electrolytic decomposition is a type of chemical reaction in which one reactant gives two or more than two products. on passing electric current.

Example: $H_2O\rightarrow H_2+\frac{1}{2}O_2$

3. Combustion is a type of chemical reaction in which fuel is reacted with oxygen to form carbon dioxide and water.

Example:  

$C_6H_{12}O_6+O_2 \rightarrow CO_2+H_2O$

4. Synthesis reaction is a chemical reaction in which two reactants are combining to form one product.

Example: $Li_2O+CO_2\rightarrow Li_2CO_3$