A substance ‘X’ reacts with a base to give a salt whose solution turns the colour of blue litmus to red. Which of the following can be ‘X’?
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 the 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 reactions takes place when solution A reacts with solution B?
When a substance X is mixed with extract of red cabbage, the solution turns light green. We want to mix a substance Y to X such that a salt is formed. Substance Y will: