Question

6.
Mark T if the statement is true and F if it is false:
(i) Nitric acid tum red litmus blue. (TF)
(ii) Sodium hydroxide turns blue litmus red. (T/F)
(iii) Sodium hydroxide and hydrochloric acid neutralise each other and
form salt and water. (T/F
(iv) Indicator is a substance which shows different colours in acidic
and basic solutions. T/F)
(v) Tooth decay is caused by the presence of a base. (TF)
​

Answer 1

Answer:

1.T

2.T

3.F

4.T

5.F

Explanation:

Answer 2

Explanation:

1.false(nitric acid have no effect on red litmus)

2.false(red into blue)

3.true (maybe)(not confirm)

4.true ( and in base also)

5.false(in the presence of acid)

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