Question

An element 'x' react with water to form a solution which turns phenolphthalein indicator pink .The element 'x' is most likely

Answer 1

The element 'X' is most likely metal.

• Phenolphthalein is used as an indicator to detect acid or base. In the presence of an acid, the indicator turns colourless while at the base, it turns pink.
• Now, the element 'X' on reaction with water will form basic oxide. The basic oxide is formed by metals.
• Hence, the element 'x' is most likely to be metal.