Which amongst the nbsp-following substance nbsp-is nbsp-an alkali-Calcium hydroxide-Aluminium hydroxide-Copper hydroxide-Sodium hydroxide-

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Neutralisation Reaction

Which amongst...

Question

Which amongst the following substance is an alkali?

Calcium hydroxide

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Copper hydroxide

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Aluminium hydroxide

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Sodium hydroxide

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Solution

The correct option is D
Sodium hydroxide

The bases which are soluble in water are known as alkalis. For example sodium hydroxide, potassium hydroxide, etc. These compounds show basic behaviour when dissolved in water.
All bases are not soluble in water. For example ammonium hydroxide, calcium hydroxide and copper hydroxide. Hence, these bases are not alkalies.

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Similar questions

Copper sulphate reacts with sodium hydroxide to form a blue precipitate of copper hydroxide and sodium sulphate. In an experiment, 15.95 g of copper sulphate reacted with 8.0 g of sodium hydroxide to form 9.75 g of copper hydroxide and 14.2 g of sodium sulphate. Which law of chemical combination is illustrated by this data?

Q. Write the formula of the following compounds.
calcium hydroxide, copper chloride, iron sulphate, sodium carbonate, copper nitrate, copper oxide, lead sulphide, magnesium chloride, zinc sulphate, potassium hydroxide.

Q. Which of the following is not a base?

(a) sodium hydroxide
(b) magnesium hydroxide
(c) copper carbonate
(d) ammonium hydroxide

Q. Substance A reacts with the copper hydroxide to give copper sulphate salt. Substance A also reacts with sodium hydroxide to give sodium sulphate salt. Identify substance A from the options given below.

(II) Write balanced chemical equation for the following:

Sodium hydroxide is added to freshly precipitated aluminium hydroxide.

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