Suggest reasons why it is necessary to standardise HCl and NaOH solutions​

look at explanation

Explanation:

the actual concentration of the NaOH solution has to be determined experimentally using a process called standardization. To standardize a base solution such as NaOH, an acid whose amount can be determined to a high degree of accuracy (called a primary standard) is needed.

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u i forgot the answer?

the answer is c. nacl