A) Mohr salt
B) \[KMn{{O}_{4}}\]
C) Oxalic acid
D) \[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\]
Correct Answer: B
Solution :
\[KMn{{O}_{4}}\] is not used as primary standard while other options are used as it.
You need to login to perform this action.
You will be redirected in
3 sec
