1)Neutralisation substances have either acidic, basic or neutral properties.

2)When an acid is mixed with a base in the right proportion, they neutralise the effect of each other. That means the acidic nature of the acid and the basic nature of the base are destroyed. This reaction is called ___

3)The reaction between hydrochloric acid and sodium hydroxide, phenolphthalein is added as an

4)Phenolphthalein is pink in sodium hydroxide. What is the color change when hydrochloric acid is added to it?

5)Neutralisation is not useful in our daily life.

6)An ant’s sting gives a lot of pain due to .

7)Excessive use of chemical fertilisers makes soil acidic. Neutralising the soil with a base like quick lime, which is calcium oxide, or

8)Our stomach contains hydrochloric acid.To relieve indigestion of food what should we intake?

9)The neutralisation reaction between hydrochloric acid and sodium hydroxide can be written as

10)What is is applied on the skin when an ant bites.


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