Question

61. Why are metals used for making bells ?
(b) Why is phosphorus kept under water ?
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Answer 1

Answer:

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a) Because they are sonorous

b) White phosphorus is highly reactive, and spontaneously ignites at about 30°C in moist air. It is usually stored under water, to prevent exposure to the air. It is also extremely toxic, even in very small quantities.

Hope it will help u

Answer 2

Explanation:

because they are sonorous that is they produce a ringing sound when we strike them .