Question

One mole of solute NaCl is dissolved in liter water.

the molarity of the solution is

1) 1 mg of $C_4{H}_{10}$ 2) 1 mg of $N_2$ 3) 1mg of sodium 4) 1 molar

Answer 1

Molarity is no of moles of solute in 1 litre of solution. Therefore here 1 mole of solute is dissolved in 1 litre of water. Therefore molarity is 1 molar.