Among the oxides $SiO_2, SO_2, Al_2O_3$ and $P_2O_3$,the correct order of acidic strength is
- A$SiO_2 < SO_2 < Al_2O_3 < P_2O_3$
- B$SO_2 < P_2O_3 < Al_2O_3 < SiO_2$
- C$Al_2O_3 < SiO_2 < P_2O_3 < SO_2$
- D$Al_2O_3 < P_2O_3 < SiO_2 < SO_2$
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Which of the following is the most acidic?
Medium
View SolutionArrange the acids $H_2SO_4$,$H_3PO_4$,and $HClO_3$ in the decreasing order of their acidic strength.
Medium
View SolutionObserve the following data ($ \Delta_i H_1, \Delta_i H_2 $ and $ \Delta_{eg} H $ represent the first,second ionisation enthalpies and electron gain enthalpy respectively).
Element $ \Delta_i H_1 $ $( kJ \ mol^{-1} )$ $ \Delta_i H_2 $ $( kJ \ mol^{-1} )$ $ \Delta_{eg} H $ $( kJ \ mol^{-1} )$ $ I $ $ 520 $ $ 7300 $ $ -60 $ $ I.I $ $ 490 $ $ 3051 $ $ -48 $ $ III $ $ 1681 $ $ 3374 $ $ -328 $ $ IV $ $ 2372 $ $ 5251 $ $ +48 $
Using the data,identify the most reactive metal.
| Element | $ \Delta_i H_1 $ $( kJ \ mol^{-1} )$ | $ \Delta_i H_2 $ $( kJ \ mol^{-1} )$ | $ \Delta_{eg} H $ $( kJ \ mol^{-1} )$ |
|---|---|---|---|
| $ I $ | $ 520 $ | $ 7300 $ | $ -60 $ |
| $ I.I $ | $ 490 $ | $ 3051 $ | $ -48 $ |
| $ III $ | $ 1681 $ | $ 3374 $ | $ -328 $ |
| $ IV $ | $ 2372 $ | $ 5251 $ | $ +48 $ |
Using the data,identify the most reactive metal.
The number of metalloids in the following elements are $Si$,$Mn$,$B$,$F$,$Cu$,$Ag$,$K$,$Sb$,$As$,$Na$,$Ge$.
Which of the following oxides is most amphoteric?
Medium
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