Question

4. Neutralisation reaction is a

(a) physical and reversible change

(b) physical change that cannot be reversed. (c) chemical and reversible change

(d) chemical change that cannot be reversed.​

Answer 1

Answer:

Option C is correct... ...

Answer 2

Required Answer :

$\large{ \boxed{ \bf{ \gray{Option \: (d)}}}} \checkmark$

• (d) chemical change that cannot be reversed.

Neutralization reaction is a chemical change that cannot be reversed.

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Extra Information:

● The reaction of an acid with a base to form salt and water is called as neutralization reaction.

Let's understand with an example!

Eventually, when hydrochloric acid (an acid) is added to sodium hydroxide (a base), then sodium chloride (a salt) and water are formed with heat.

$\sf \: HCl + NaOH \longrightarrow \: NaCl + Water + Heat$

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Some more Information:

• Acids are those substances which are sour in taste and are corrosive in nature.

• Bases are bitter in taste, soapy to touch & are mostly insoluble in water.

• Indicators are those substances which are often used to test the acidic, basic substances.

• A salt can be acidic, basic or neutral.

• Antacids are used to cure indigestion. For example, milk of magnesia.