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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?
(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?
All indicators do not change with bases and acids; e.g., changes to pink with base but remains with acid. (option (a) is incorrect). Some indicators change colour with both acid and base, e.g., and methyl orange (option (b) is incorrect). Sometimes indicator's colour cannot be changed for both acid and bases (option (c) is incorrect). The change of colour in an and a base depends on the type of indicator (option (d) is correct).
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