Yes. As long as the ratio of solute and solvent is same for both solution, the solution has the same concentration. for example, solution A has 2 ml of water, and 1 ml of sucrose. Solution B has 4ml of water and 2ml of sucrose. Both has a ratio of water to sucrose by 2 : 1. they have the same concentration of 50% sucrose.
The correct answer is two hundred for its mass number as eighty plus hundred and twenty is two hundred hence the answer is the last option
Convection is the transfer of heat/thermal enrgy by the movement of a fluid(either a liquid or gas).
