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Which of the following is not correct fo...

Which of the following is not correct for noble gas?

A

Ar is used in electric bulbs

B

Kr is obtained during radioactive disintegration

C

Half life of Rn is 3.8 days

D

Helium is used to produce low temperature

Text Solution

Verified by Experts

The correct Answer is:
B
Rn is obtained not Kr
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MARVEL PUBLICATION-P-BLOCK ELEMENTS -TEST YOUR GRASP
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  5. Oxide of nitrogen which acts as oxidising as well as reducing agent is

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  7. What is the hybridization of S in SF6 ?

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  9. Laughing gas has chemical formula

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  10. A solution of colourless salt H on boiling with axcess NaOH produces a...

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  11. When chloride is passed over dry slaked lime at room temperature the m...

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  12. When I(2) is dissolved in C Cl(4), the colour that results is

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  14. The hybridisation of xenon in XeF2 is

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