MCQ
An element E reacts with water to form a solution which turns phenolphthalein solution pink. The element E is most likely to be:
- AS
- BCa
- CC
- DAg
Explanation:
Calcium is the metal that can react with water to form calcium hydroxide, which is basic in nature. Hence it turns phenolphthalein solution pink.
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$4\text{M}\ +\ 3\text{O}_2\xrightarrow{\ \ \ \ \ \ \ \ \ \ \ }2\text{M}_2\text{O}_3$
This equation represents: