Question

A substance Z turns methyl orange yellow, it will
turn:
(a) Red litmus blue
b Blue litmus red
(c) Phenolphthalein colourless
(d) Both (a) and (c)​

Answer 1

Answer:

option b is the right answer

Answer 2

A substance Z turns methyl orange yellow, it will turn red litmus blue. (Option a)

• The substance 'Z' transforms the colour of methyl orange into yellow and that's why the substance 'Z' is obviously basic in nature.

• Because, only the basic substance can change the colour of methyl organe into yellow,acidic substance will change the colour into red which is not appropriate according to the circumstances mentioned in the question.

• And,we know that the basic substances will obviously turn red litmus into blue litmus.

• That's why option a is the the correct answer of this question.