Question

P,Q and R are aqueous solutions of sodium chloride, sodium hydroxide and hydrogen chloride which of these will turn:
1) red litmus blue
2) blue litmus red
3) phenolphthalein to pink
4) methyl orange to yellow
5) red cabbage juice to green​

Answer 1

Answer:

Since P is the aqueous solution of sodium chloride, it is neutral in nature, and therefore the litmus paper will not turn into any color. On the other hand, Q is the solution of Sodium hydroxide, so it turns red litmus paper blue because it is an alkaline substance.

Explanation:

red litmus paper blue