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प्रश्न
- Both acids and bases change colour of all indicators.
- If an indicator gives a colour change with an acid, it does not give a change with a base.
- If an indicator changes colour with a base, it does not change colour with an acid.
- Change of colour in an acid and a base depends on the type of the indicator.
Which of these statements are correct?
विकल्प
All four
a and d
b, c and d
Only d
उत्तर
Only d
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| B | 5 |
| C | 7 |
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