Which of the following is a white substance, having alkaline nature in solution?

NaNO₃

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NH₄Cl

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Na₂CO₃

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Fe₂O₃

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Solution

The correct option is C
Na₂CO₃

When sodium carbonate ( ${Na}_{2} {CO}_{3}$ ), a white substance, is added in water, it forms carbonic acid ( $H_{2} {CO}_{3}$ ) and sodium hydroxide ( $NaOH$ ), which is a strong base.

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Similar questions

Fill in the following blanks with suitable words :

(a) Acids have a pH ___ than 7.

(b) Alkalis have a pH ___ than 7.

(d) The more acidic a solution, the ___ the pH.

(e) The more alkaline a solution, the ___ the pH.

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