Question

1.The natural indicator from the following is
a) litmus
b) phenolphthalein c) methyl orange
d) all of these

2.What is the common name of sodium bicarbonate?
a) phitkari
b) caustic soda
c) baking soda d) blue vitriol

3.Sodium hydroxide (NaOH) is commonly known as
a) caustic soda
b) baking soda c) digene
d) none of these

4.Sodium chloride will turn
a) blue litmus red
b) red litmus blue
c) methyl orange yellow
d) none of the above

5. Acids
a) are soluble in water
b) have sour taste
c) are corrosive in nature
d) all of the above

6. Bases are those substances which
a) taste bitter and are soapy
c) neither taste bitter nor soapy
b) taste bitter and are not soapy
d) all of these​

Answer 1

Answer:

1. Litmus

2. Caustic soda

3. Baking soda

4. None of these

5. All of these

6. A.

Answer 2

Answer:

1.Litmus

2.caustic soda

3.baking soda

4.None of these

5.All of these