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12th Andhra Pradesh Board
IMPORTANT
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Which one of the following does not exist?

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Important Questions on p-Block Elements
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12th Andhra Pradesh Board
IMPORTANT

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12th Andhra Pradesh Board
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List out the uses of neon.

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12th Andhra Pradesh Board
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Write any two uses of argon.

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12th Andhra Pradesh Board
IMPORTANT

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12th Andhra Pradesh Board
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Helium is heavier than hydrogen. Yet helium is used (instead of ) in filling balloons for meteorological observations. Why?

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How is prepared?

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12th Andhra Pradesh Board
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HARD
12th Andhra Pradesh Board
IMPORTANT
Give the preparation of .
