Question

When $1$ mole of a substance is present in $1$ L of the solution, it is known as :

• A. normal solution
• B. molar solution
• C. molal solution
• D. None of the above

Answer 1

Answer: (B)

molar solution

Molar concentration is a measure of the concentration of a solute in a solution and its unit is mol L${}^{-1}$. Molarity is a method to express the concentration of a solution. It is defined as the number of moles of solute dissolved per liter of solution.

Hence, when $1$ mole of a substance is present in $1$ L of the solution, it is known as a molar solution.

Option B is correct.