Hydrogen & Its Compounds / हाइड्रोजन और इसके यौगिक
JEE Main & Advanced
Chemistry
Hydrogen & Its Compounds / हाइड्रोजन और इसके यौगिक
Question Bank
Mock Test - Hydrogen
question_answer
Washing soda (\[N{{a}_{2}}C{{o}_{3}}.10{{H}_{2}}O\]) is widely used in softening of hard water. If 1L of hard water requires 0.0143 g of washing soda. What is hardness of water in terms of ppm of\[CaC{{O}_{3}}\]?