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Questions
Write the structure of pyrophosphoric acid.
Write the structure of pyrophosphoric acid, H4P2O7.
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Solution 1
\[\begin{array}{cc}
\phantom{.}\ce{O}\phantom{.......}\ce{O}\phantom{.}\\
\phantom{.}||\phantom{........}||\phantom{.}\\
\ce{HO - P - O - P - OH}\\
\phantom{.......}|\phantom{.........}|\phantom{........}\\
\phantom{......}\ce{OH}\phantom{......}\ce{OH}\phantom{.....}
\end{array}\]
Solution 2
RELATED QUESTIONS
Which of the following compounds contain S = O as well as S = S bonds?
(A) Sulphuric acid
(B) Thiosulphuric acid
(C) Sulphurous acid
(D) Thiosulphurous acid
H2O is liquid while H2S is gas at room temperature. Explain.
What happens when conc. is H2SO4 added to Cu? Write the equations.
What happens when SO3 is passed through water? Write the equations.
Draw the structure of the following:
H2S2O7
Write the molecular and structural formulae of thiosulfuric acid.
Draw the structures of the following :
H2S2O7
In the preparation of \[\ce{H2SO4}\] by Contact Process, why is \[\ce{SO3}\] not absorbed directly in water to form \[\ce{H2SO4}\]?
Match the formulas of oxides given in Column I with the type of oxide given in Column II and mark the correct option.
| Column I | Column II |
| (A) \[\ce{Pb3O4}\] | (1) Neutral oxide |
| (B) \[\ce{N2O}\] | (2) Acidic oxide |
| (C) \[\ce{Mn2O7}\] | (3) Basic oxide |
| (D) \[\ce{Bi2O3}\] | (4) Mixed oxide |
Assertion: \[\ce{SF6}\] cannot be hydrolysed but \[\ce{SF4}\] can be.
Reason: Six \[\ce{F}\] atoms in \[\ce{SF6}\] prevent the attack of \[\ce{H2O}\] on sulphur atom of \[\ce{SF6}\].
