An element X forms an oxide $X_{2} O$ The aqueous solution of $X_{2} O$ turns red litmus to blue
What is the nature of the oxide $X_{2} O$ ?
Is X a metal or non-metal?
Name another element similar to X?

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Solution

Most metal oxides are insoluble in water but some of these dissolve in water to form alkalis.
Since the oxide turns red litmus blue, therefore X is metal because it is an alkaline hydroxide.
X is metal. For example, Potassium oxide is a basic oxide that reacts with water to form Potassium Hydroxide.
The Chemical Reaction is:
$K_{2} O (s) + H_{2} O (l) \to 2 KOH (aq) Potassium Potassium Oxide Hydroxide$
Due to the formation of Potassium Hydroxide alkali, a solution oxide in water turns red litmus to blue.
Sodium is another element similar to X.
Sodium oxide is a basic oxide that reacts with water to form Sodium Hydroxide.
The Chemical Reaction is:
${Na}_{2} O (s) + H_{2} O (l) \to 2 NaOH (aq) Potassium Potassium Oxide Hydroxide$

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An element X forms an oxide X2O The aqueous solution of X2O turns red litmus to blueWhat is the nature of the oxide X2O?Is X a metal or non-metal?Name another element similar to X?

An element X forms an oxide $X_{2} O$ The aqueous solution of $X_{2} O$ turns red litmus to blue
What is the nature of the oxide $X_{2} O$ ?
Is X a metal or non-metal?
Name another element similar to X?