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NCERT EXEMPLAR-P-BLOCK ELEMENTS-P-Block Elements
- In the preparation of H(2)SO(4) by Contact process, why is SO(3) not ...
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- Write a balanced chemical equation for the reaction showing catalytic ...
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- Write the structure of pyrophosphoric acid.
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- PH(3) forms bubbles when passed slowly in water but NH(3) dissolves. E...
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- In PCl(5) phosphorus is in sp^(3) d hybridised state but all its five ...
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- Why is nitric oxide paramagnetic in gaseous state but the solid obtain...
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- Give one reason to explain why ClF(3) exists but FCl(3) does not exist...
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- Out of H(2)O which one has higher bond angle and why?
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- SF(6) is known but SC(6) is not. Why?
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- On reaction with Cl(2) phosphorus forms two types of halides 'A' and '...
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- In the ring test of NO(3)^(-) ion, Fe^(2+) ion reduces nitrate ion to ...
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- Explain why the stability of oxoacids of chlorine increases in the ord...
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- Explain why ozone is thermodynamically less stable then oxygen ?
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- P(4)O(6) reacts with water according to equation P(4)O(6)to4H(3)PO(3)....
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- White phosphorus reacts with chlorine and the product hydrolyses in th...
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- Name three oxoacids of nitrogen. Write the disproportionation reaction...
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- Nitric acid forms an oxide of nitrogen on reaction with P(4)O(10). Wri...
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- (i) White phosphorus (ii) red phosphorus and (iii) black phosphorus. W...
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- Given an example to show the effect of concentration of nitric acid on...
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- PCl(5) reacts with finely divided silver on heating and a white silver...
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