JEE Main & Advanced
JEE Main Paper Phase-I (Held on 09-1-2020 Morning)
question_answer
The hardness of a water sample containing \[{{10}^{-3}}M\,\,\,MgS{{O}_{4}}\] expressed as \[CaC{{O}_{3}}\]equivalents (in ppm) is _____. (molar mass of \[MgS{{O}_{4}}\] is\[120.37\text{ }g/mol\]) [JEE MAIN Held on 09-01-2020 Morning]