Question

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?

Answer 1

Answer:

a) Solution A turns red litmus to blue

b)Solution B turns blue litmus to red

c) an acid and water

d)a base and water

e) it is called a neutralization reaction

Answer 2

Explanation:

• When the universal indicator is added, solution A turns to purple from blue. When the universal indicator is added, then the solution B turns red from orange.
• (a) Solution A is basic in nature, so the litmus turns blue.
• (b) Solution B is acidic in nature, so the litmus turns red.
• (c) Just like solution A, sodium hydroxide solution and the milk of magnesia are bases.
• (d) Just like solution B, hydrochloric acid and lemon juice are acidic in nature.  
• (e) When solution B reacts with solution A, neutralisation reaction takes place.