Question

Q4. Differnce All plzz

Answer 1

1. Synthesis Reactions:-

Two or more reactants unite to form a single product.

Substitution or Single Replacement Reactions:-

A single free element replaces or is substituted for one of the elements in a compound.

Answer 2

A synthesis reaction or direct combination reactionis a type of chemical reaction in which two or more simple substances combine to form a more complex product. The reactants may be elements or compounds. The product is always a compound.
Substitution reaction (also known as single displacement reaction or single replacementreaction) is a chemical reaction during which one functional group in a chemical compound is replaced by another functional group. Substitution reactions are of prime importance in organic chemistry
hen we pass electricity in a solution of Na-Cl and water NaCl is broken in ions. Or electrolysis of water is the decomposition of water into oxygen and hydrogen gas due to an electric current being passed through the water.