MCQ
The indicator which produces a pink colour in an alkaline solution is:
- AMethyl orange.
- BTurmeric paper.
- CPhenolphthalein.
- DLitmus paper.
Explanation:
Phenolphthalein produces a pink colour in an alkali solution.
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The correct observations are:
$\text{H}_3\text{C}-\text{CH}_2-\text{CH}_2-\text{CH}_3$
$\text{H}_3\text{C}-\text{C}\equiv\text{C}-\text{CH}_3$
$\ \text{H}_3\text{C}-\text{CH}-\text{CH}_3\\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ | \ \ \ \\ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{CH}_3$
$\ \text{H}_3\text{C}-\text{C}=\text{CH}_2\\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ | \ \ \ \\ \ \ \ \ \ \ \ \ \ \ \ \ \ \text{CH}_3$