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CHHAYA PUBLICATION-P-BLOCK ELEMENTS-PRACTICE SET 7 (ANSWER THE FOLLOWING QUESTIONS) : -
- Why is helium used in diving apparatus ?
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- Why does R(3) P = O exist but R(3) N = O does not (R = alkyl grou...
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- H(2)S is acidic but H(2) O is neutral in nature - why ?
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- Fluorine cannot be prepared by oxidation of F^(-) ion - explain.
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- Interhalogen compounds are more reactive than halogen - why ?
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- Most of the noble gas compounds are by formed by xenon - why ?
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- Why is the group to which the noble gases belong termed as zero gr...
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- NH(3) is a better complexing agent than PH(3) - why ?
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- Why N(2) is chemically very inert at room termpreature ?
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- During manufacture of H(2)SO(4) by contact process, why is SO(3) n...
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- Which oxofluoride of xenon is octahedral ?
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- HF is weaker acid than HI. Explain.
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- Phosphours shows greater tendency for catenation than nitrogen .E...
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- Hydrolysis of XeF(6) is not a redox reaction - explain.
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- KHF(2) exists while KHCI(2), KHBr(2),KHI(2) do not - Why ?
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- Though nitrogen exhibits + 5 oxidation state is cannot form pen...
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- Bleaching by SO(2) is not premanent but that of Cl(2) is permane...
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- Write down the order of oxidising power of the oxoacids of chlor...
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