JEE Mains · Chemistry · STD 11 - 1. Some basic concept of chemistry
Identify the correct statements:
A. Hydrated salts can be used as primary standard.
B. Primary standard should not undergo any reaction with air.
C. Reactions of primary standard with another substance should be instantaneous and stoichiometric.
D. Primary standard should not be soluble in water.
E. Primary standard should have low relative molar mass.
Choose the correct answer from the options given below :
- A A, B, C and E only
- B A, B, and C only
- C A, B and E only
- D D and E only
Answer & Solution
Correct Answer
(B) A, B, and C only
Step-by-step Solution
Detailed explanation
Primary standards must be soluble for standard solution information.
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