Solution A turns universal indicator blue to purple whereas solution B turns universal indicator orange to red.

(a) What will be the action of solution A on litmus?


(b) What will be action of solution B on litmus?


(c) Name any two substances which can give solutions like A.


(d) Name any two substances which can give solutions like B.


(e) What sort of reaction takes place when solution A reacts with solution B?

(a) As Solution A turns universal indicator from blue to purple, it is determined that it is basic in nature. It will turn litmus into blue.

(b) As Solution B turns universal indicator from orange to red, it is determined that it is acidic in nature. It will turn litmus into red.


(c) Milk of magnesia and Sodium hydroxide solution


(d) Lemon juice and Hydrochloric acid


(e)When acid reacts with base, it neutralizes each other and forms salt and water,the reaction is called Neutralization reaction.


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