What is the permissible limits for construction of suspended matter in water?

With regard to the curing water, identify the incorrect statement.

Which of the following statement is incorrect?

What is the permissible limits for construction of sulphates in water?

There is necessary to minimize the use of salt water in RCC.

What is the permissible limits for construction of chlorides in water for RCC work?

Which of the following statement is incorrect for mixing water?

Presence of acid, alkali _______