An element A reacts with water to form a solution, which turns phenolphthalein solution pink. Element A is most likely to be _____

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An element A reacts with water to form a solution, which turns phenolphthalein solution pink. Element A is most likely to be ______?

BMg

CAg

Answer:

Magnesium (Mg) reacts with water to produce an alkaline solution, which turnsphenolphthalein pink.
Metal donates electrons so, metal cause reduction of water.
Positively charged metal ion reacts with negatively charged hydroxide ion to form magnesium hydroxide and hydrogen gas.
Phenolphthalein indicator remains colourless in acidic solution and give pink colour in basic solution.

Related Questions:

Four different experiments were conducted by students of Class X. Who among them was able to perform a displacement reaction?

1. Navin took a beaker containing some aqueous solution of CuSO4, and added a piece of magnesium strip in it.
II. Ayush took a beaker containing some aqueous solution of CuSO4, and added some platinum pieces in it.
III. Sneha took a beaker containing some aqueous solution CuSO4, and added some copper tumings in it.
IV. Akriti took a beaker containing some aqueous solution CuSO4, and added a piece of silver wire in it.

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