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Which of the following statements are not correct?

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Ar is no used in electric bulbs.

Kr is obtained during radioactive decay

Boiling point of helium is the lowest among all noble gases

Xe forms XeOF₄

answer is A.

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Detailed Solution

He has the smallest size, therefore its boiling point is low.

${XeF}_{6} + H_{2} O \to {XeOF}_{4} + 2 HF$

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