Question

1. We use ammonia in
I) fertilizer
ii) flavouring agents
iii) manufacturing detergent
iv) food preservation
choose the correct answer
2. which of the following is the natural indicator
I) Methyle orange
II) phenolphthalein
III) chinarose petal
iv) none of these
3. the neutralisation reactions , we get
I) acid and salts
II) bases and salts
III) salt and water
iv) acid and water
4. Name the acid that we found in ants sting
5. __________ is used to determine the acidity and alkalinity of a solution.
6. The salt is used to purification of water ? what ?
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Answer 1

Answer:

1) fertilizer

2)methyle orange

3)salt and water

4)methanoic acid

5) pH

Answer 2

Answer:

1.fertilizer (1)

2.methyl orange (1)

3.salt and water (3)

4.methanoic acid(formic acid)

5.pH

6.Nacl

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