If `5.85`g of `NaCl`(molecular weight`58.5)`is dissolved in water and the solution is made up to `0.5`litre , the molarity of the solution will be

Options

A. `0.2`
B. `0.4`
C. `1.0`
D. `0.1`

Answer

A

Explanation

58.5 gm of NaCl in 1 lit. gives 1 Molar solution.
58.5 gms of NaCl in 0.5 lit.gives 2 Molar solution.
`:.` 5.85 gms of NaCl in 0.5 lit. gives 0.2 Molar solution.