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MODERN PUBLICATION-GROUP 18 ELEMENTS-EXERCISE
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- Which inert gas was discovered in semi atmosphere ?
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- The coloured discharge tubes for advertisement contain
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- XeF(6) on complete hydrolysis gives
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- The number of unpaired electrons in Mn^+ is:
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- Deep sea dives respirate in a mixture of
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- XeOF(4)
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- The most abundant noble gas present in the atmosphere is .
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- AIDS is due to
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- In XeF(2) , xeF(4) and XeF(6) the number of lone pairs and Xe is respe...
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- Tear gas is
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- Explain the The bond angle in PH(3) is less than that of NH(3).
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- How does acetone react with (i) PCl(5) (ii) C(2)H(5)OH (iii) LiAlH(4)
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- The gas used for inflating the tyres of aeroplanes is:
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- Which of the following noble gases is the least polarisable ?
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- Which noble gas does not form clathrates:
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- Ionisation potential of noble gases are.
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- Noble gases haveelectron affinity
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