Question

1. Consider the following statements:
(a) Both acids and bases change colour of all indicators.
(b) If an indicator gives a colour change with an acid, it does not give a
change with a base.
(c) If an indicator changes colour with a base, it does not change colour
with an acid.
(d) Change of colour in an acid and a base depends on the type of the
indicator.
Which of these statements are correct?
(i) All four (ii) a and d (iii) b, c and d (iv) only d​

Answer 1

correct answer is only d