Question

Iron suphate turns red litum into blue

Answer 1

Answer:

This statement is wrong.

As Iron Sulphate is considered to be acidic substance, it should turn blue litmus to red. Turning red litmus to blue means that the substance is basic.

Hope this helps !

Answer 2

Answer:

Copper sulphate is an acidic salt: It is the product of the reaction between a weak copper base and a strong acid , H2SO4

Litmus has a red colour in acidic solutions:

Conclusion: Acidic copper sulphate solution turns blue litmus to red

Baking soda is a basic salt : It is the reaction product of a weak acid , CO2 and a strong base , NaOH

Litmus has a blue colour in basic solutions:

Conclusion: basic baking soda solution turns red litmus to blue