11. 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) and (c) (iv) only (d)

Harshit Singh , 4 Years ago

Grade 12th pass