Question

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Q.5. (i) Bee-sting leaves a chemical substance that causes
pain and irritation. Name the chemical substance.
Identify the type of substance which may give
relief on the sting area when applied on it.
(ii) Mention the pH value below which tooth decay
begins. How this fall below this value ? Explain
the ill effect of the acidic medium in the mouth.
How can this be prevented ?
(iii) What are strong acids and weak acids ? Give an
example of each.
A Board Term-I, 2012]​

Answer 1

strong acid the strong acid means which acid that can harm our skin how masking and harm plastic things for example H2O and weak acids weak acids are the acid which we can touch and they will not come to us for example Ashiana casset

Answer 2

your answer : ↑

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