1) Molarity is A) the number of moles of solute present in 1 $dm^{3}$ volume of solution B) the number of moles of solute dissolved in 1 kg of solvent C) the number of moles of solute dissolved in 1 kg of solution D) the number of moles of solute dissolved in 100 $dm^{3}$ volume of solution Answer: Option AExplanation:Molarity is defined as the number of moles of solute dissolved in one litre or one dm3 volume of solution.It is expressed by the symbol 'M' Molarity (M) = Number of molesof solute/ Volume of solution(in L or dm3)