Question

Multichoice

When a double displacement reaction takes place, one of the products must be _____.

1. a salt
2. a gas
3. a precipitate
4. water

Answer 1

a salt

Step-by-step explanation:

Answer 2

Answer: The correct answer is Option 1.

Step-by-step explanation:

A double displacement reaction is defined as the reaction in which exchange of ions takes place. The general equation for the reaction follows:

`AB+CD\rightarrow AD+CB`

During this reaction, one of the product formed is always a salt.

A gas is formed in a single displacement reaction and not in double displacement reaction.

A precipitate is formed in some of the double displacement reaction.

Water is formed in neutralization reaction when an acid reacts with a base to produce a salt and water.

Hence, the correct answer is Option 1.