Question

which gas is called silent killer​

Answer 1

Answer:

Carbon monoxide (CO)

Carbon monoxide (CO) is a gas that can kill you quickly. It is called the “silent killer” because it is colorless, odorless, tasteless and non- irritating. If the early signs of CO poisoning are ignored, a person may lose consciousness and be unable to escape the danger.

Explanation:

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Answer 2

Carbon monoxide (CO) is known as 'silent killer'

Reason- It is colourless, odourless and non-irritating (hence called silent)