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प्रश्न
Bee stings can be treated with:
(a) vinegar
(b) sodium hydrogencarbonate
(c) potassium hydroxide
(d) lemon juice
उत्तर
sodium hydrogencarbonate
When a bee stings a person, it injects an acidic solution into the person’s skin, which causes severe pain and an itching sensation. Applying a baking soda solution (sodium hydrogencarbonate solution, which is a base) soothes the pain by neutralising the acid.
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संबंधित प्रश्न
Name one natural source of the following acids:
Oxalic acid
What colour does phenolphthalein indicator turn when added to an alkali (such as sodium hydroxide)?
Write any two important uses of bases.
What do you understand by the term, acid?
Give two examples of the following:
oxy-acid
How is an acid prepared from a non metal and a base from a metal? Give equation.
What happens when a solution of an acid is mixed with a solution of a base in a test tube?
(i) Temperature of the solution decreases.
(ii) Temperature of the solution increases.
(iii) Temperature of the solution remains the same.
(iv) Salt formation takes place.
The Acid secreted in our stomach is ______.
Which is the strongest acid in the following?
Name the acid present in lemon.
