defence exam SSB Head Constable (Communication) 2023 Mock Test General Science Chemistry Basic Concepts of Chemistry
10 g substance (molar mass = 50) is dissolved in 200 ml water and density of this solution was found to be 1.05 g/ml and approx molality of the solution is -
1
1.05 mol kg-1
2
1.0 mol kg-1
3
0.1 mol kg-1
4
2.0 mol kg-1