JEE Main 20246 Apr, Evening shiftChemistryHardSome Basic Concepts in Chemistry88× since 2002Molality (m)(\mathrm{m})(m) of 3M3 \mathrm{M}3M aqueous solution of NaCl\mathrm{NaCl}NaCl is : (Given : Density of solution =1.25 g mL−1=1.25 \mathrm{~g} \mathrm{~mL}^{-1}=1.25 g mL−1, Molar mass in g mol−1:Na−23,Cl−35.5\mathrm{g} \mathrm{~mol}^{-1}: \mathrm{Na}-23, \mathrm{Cl}-35.5g mol−1:Na−23,Cl−35.5)AOption A. 2.90 mBOption B. 3.85 mCOption C. 1.90 mDOption D. 2.79 mCheckSkip · show solution
