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CBSE Class 12-science Answered

Why primary  standard  substances  are used to make standard  solutions 
Asked by aniketsuryawanshi0891 | 21 Jan, 2021, 05:00: PM
answered-by-expert Expert Answer
Primary standards are used to make strandard solutions due to their-
High purityStability (low reactivity)
Low hygroscopicity (to minimize weight changes due to humidity)
High equivalent weight (to minimize weighing errors)
Non-toxicity
Ready and cheap availability
Answered by Ravi | 03 Feb, 2021, 12:37: PM

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