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THE P-BLOCK ELEMENTS
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DINESH PUBLICATION-THE P-BLOCK ELEMENTS -Questions From Board Examinations
- Why is PCl(5) more covalent than PCl(3) ?
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- How will you prepare PH(3) from (i) Metal phosphides (ii) H(3)PO(2) ...
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- Explain why nitrogen exists as a diatomic molecule and phosphorus at P...
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- Why are halogens strong oxidising agents ?
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- How will you prepare the following ? Give chemical equations also. (...
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- Why phosphorus is more reactive than nitrogen?
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- Why are the elements of group 17 generally coloured ?
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- How does nitric acid react with (i) Copper (ii) Iron ? Give chemical e...
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- What is the basicity of H(3)PO(3) ?
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- What happens when barium azide is heated ?
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- How are interhalogen compounds formed ? Write general compositions tha...
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- Find the total number of diprotic acids among the following: H(3)PO(...
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- Why does NH(3) act as a good complexing agent ?
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- Which allotropic form of sulphur is most stable ?
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- Why is bond angle in NH(4)^(+) ion higher than in NH(3) ?
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- Why is the BiH(3) strongest reducing agent amongst all the hydrides of...
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- Which poisonous gas is evolved when white phosphorus is heated with co...
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- (i) Which allotrope of phosphorus is more reactive and why ? (ii) Ho...
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- Give reason for the following : (i) Chlorine water loses its colour ...
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- Draw the structures of (i) H(2)S(2)O(8) (ii) XeO(4).
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