Question 11
Consider the following statements:
Which of these statements are correct?
(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
Question 11
Consider the following statements:
Which of these statements are correct?
(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
The change of colour in an acid and a base depends on the type of the indicator. For example, a blue litmus doesn't show any change with a basic solution but turns red in an acidic medium and its the reverse in the case of a red litmus. Hence, d is the only correct statement.
The change of colour in an acid and a base depends on the type of the indicator. For example, a blue litmus doesn't show any change with a basic solution but turns red in an acidic medium and its the reverse in the case of a red litmus. Hence, d is the only correct statement.
