An element E reacts with water to form a solution which turns phenolphthalein solution pink. The element E is most likely to be:
(a) S
(b) Ca
(c) C
(d) Ag

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Solution

(b) Ca
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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An element E reacts with water to form a solution which turns phenolphthalein soluiton pink. The element E is most likely ot be:

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(b) Ca

(d) Ag

An element X reacts with water to form a solution which turns phenolphthalein indicator pink.The element X is most likely to be:

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