Question : The hardness of water is expressed in terms of:
Option 1: mole
Option 2: molarity
Option 3: Parts per million
Option 4: normality
New: SSC CHSL tier 1 answer key 2024 out | SSC CHSL 2024 Notification PDF
Recommended: How to crack SSC CHSL | SSC CHSL exam guide
Don't Miss: Month-wise Current Affairs | Upcoming government exams
Correct Answer: Parts per million
Solution : The correct option is Parts per million .
Parts per million (ppm) is the number of units of mass of a contaminant per million units of total mass. It's the weight-to-weight ratio that's employed in concentration descriptions. The amount of a contaminant per million units of total mass is expressed in parts per million (ppm).
Related Questions
Know More about
Staff Selection Commission Combined High ...
Result | Eligibility | Application | Admit Card | Answer Key | Preparation Tips | Cutoff
Get Updates Brochure
Your Staff Selection Commission Combined Higher Secondary Level Exam brochure has been successfully mailed to your registered email id “”.
