Question

2. Fill in the blanks :
(1) The word acid comes from the Latin word............
(2) Special type of substances are used to test whether a substance is
acidic or basic are known as.............. .
(3)......... acid is found in curd.
(4)THE colour of litmus paper in distilled water is............... .
(5)Base turns ............... litmus ........ .
(6)............and ........... are produced in the neutralisation process.
(7)When an ant bites,it injects the ........... into the skin.

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Answer 1

Answer:

2- litmus paper

3- lactic acid

4- no changes

5- red to blue

6- heat and salt

7- formic acif

Answer 2

1.The word acid comes from the Latin word acere, which means "sour." Most acids taste sour.

2.Special type of substances are used to test whether a substance is acidic or basic. These substances are known as indicators.

3.lactic acid

4. won't change it's colour.. because it's neither acidic nor basic.

5 base turns red litmus paper turns blue

6.A neutralization reaction is when an acid and a base react to form water and a salt and involves the combination of H+ ions and OH- ions to generate water

7.When an ant bites it basically injects formic acid into the skin. Calamine solution contains zinc carbonate and is basic in nature