1.

Select the most ionic and most covalent compounds respectively from the following. CrO_5, Mn_2O_7, PbO, P_4O_10,SnO_2

Answer»

`CrO_(5), Mn_(2)O_(7)`
`PbO, Mn_(2)O_(7)`
`CrO_(5), Fe_(2)O_(3)`
`CrO_(5), SnO_(2)`

ANSWER :B


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