Question

Question 1.

What is the test for acids and bases using litmus paper?

Question 2.

What name is given to those substances which do not change the colour of either

red or blue litmus paper?

Question 3.

Write the name of two indicators which occur naturally.

Question 4.

Name the acid present in lemon juice and tomato.

Question 5.

Name a substance which is used to cure the discomfort caused by indigestion due to

over eating.

Question 6.

Why does a turmeric stain on white shirt is turned to red when it is washed with

soap?

Question 7.

Is lime water an acidic or basic solution?

Question 8.

What is the nature of baking soda?

Question 9.

Name the reaction when an acid is mixed with base.

Question 10.

Which acid is injected into our body by an ant sting that causes pain?​

Answer 1

1. acid turns litmus red and base turns blue

2 neutral

3. KmnO4. H2O2

4 citric acid

6 as it is acidic in nature

7 basic in nature

8 basic

9 neutralisation reaction

10 formic acid

Answer 2

Answer:

Refer to the attachment dear........