CBSE 12th Standard Chemistry Subject The p-Block Elements Ncert Exemplar 2 Mark Questions 2021
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CBSE 12th Standard Chemistry Subject The p-Block Elements Ncert Exemplar 2 Mark Questions 2021
12th Standard CBSE
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Reg.No. :
Chemistry
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State reasons for each of the following:
(i) All the P-Cl bonds in PCl5 molecule are not equivalent.
(ii) Sulphur has greater tendency for catenation than oxygen.(a) -
Assign a reason for each of the following statements:
(i) More metal fluorides are ionic in nature than metal chlorides.
(ii) SCI6 is not known but SF6 is known.(a) -
Explain why the stability of oxoacids of chlorine increases in the order given below:
HCIO < HCIO2 < HCIO3 < HCIO4(a) -
Write a balanced chemical equation for the reaction showing catalytic oxidation of NH3 by atmospheric oxygen.
(a) -
Write the structure of pyrophosphoric acid.
(a)