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(i) Write the name given to bases that a...

(i) Write the name given to bases that are highly soluble in water. Give an example.
(ii) How is tooth decay related to pH? How can it be prevented?
(iii) Why does bee-sting cause pain and irritation? Rubbing of baking soda on the sting area gives relief. How?

Text Solution

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(i) Alkali
NaOH or KOH
(ii) Tooth decay starts when the pH of the mouth is lower than 5.5. It can be prevented by using tooth pastes which are generally basic.
(iii) Bee-sting has acid that causes pain and irrigation. Baking soda being alkaline, neutralises acid and gives relief.
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OSWAAL PUBLICATION-ACIDS,BASES AND SALTS -TOPIC -1 SHORT ANSWER TYPE QUESTIONS -II
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