Question

Why do the doctors rub ether before giving you an injectionMercury and wate​

Answer 1

Answer:

Ether takes up this heat of vaporisation from the portion of skin it is sprayed on. The energy lost by the particles from the affected area makes the area cool and leaves it numb i.e. the patient doesn't feel much of pain.

Explanation:

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Answer 2

Answer:

Ether takes up this heat of vaporisation from the portion of skin it is sprayed on. The energy lost by the particles from the affected area makes the area cool and leaves it numb i.e. the patient doesn't feel much of pain.