Question

which of the following solutions will not change the colour of blue litmus? an aqueous
A. Chloride
B. Ammonium
C. Potassium hydroxide
D. Sodium chloride

Answer 1

ammonium

it is acidic in nature and hence it will change blue litmus to red

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Answer 2

Potassium hydroxide being base it will not change blue colour

Sodium chloride being salt it will not change the blue colour

Which chloride??

Ammonium is acid so it will change the colour

Hope this would help you :-)