Question

An element 'X' forms a solid oxide which dissolves in water. The solution formed gives a blue colour with litmus. X could be

Sodium

Nitrogen

Iron​

Answer 1

Answer:

X should be Na.

As Sodium oxide dissolves in water & gives sodium hydroxide & hydrogen gas and since metallic oxides are basic in nature hence they convert red litmus to blue in aqueous solution.

Answer 2

Answer:

'X' would be sodium (Na) as it is found in strong base and bases turn red litmus paper into blue

Explanation:

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