Question

A base can be prepared by the reaction between a)an active nonmetal b)contains the hydroxide polyatomic ion c)a sulphide with water d)an active metal with water

Answer 1

d) Reaction of an active metal with water

For example:
Sodium (active metal) + water ----------> Sodium hydroxide (base) + hydrogen gas

2Na (s) + 2H2O (i) -----------------------> 2NaOH (aq) + H2 (g)

Answer 2

Option (d) is the correct answer - an active metal with water

A base can be prepared by the reaction between an active metal with water

Explanation:

• An acid and a base when reacts, the reaction between  is called neutralization titration.
• In a neutralization reaction, the reaction takes place in between an aqueous solution of a base reacts with an aqueous solution of an acid in order to produce a solution of sodium hydroxide and it liberates hydrogen gas.
• A base can be prepared by the reaction between an active metal with water
• When base reacts with water following reaction of an active metal with water takes place.
• Here Base is sodium metal which is an active metal it reacts with water and forms sodium hydroxide and liberates hydrogen gas.
• Sodium (active metal) + water ----------> Sodium hydroxide (base) + hydrogen gas

$2Na (s) + 2H2O (l) ------ 2NaOH (aq) + H2 (g)$

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