Periodic Classification and Periodic Properties 2 Question 26
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26. The option(s) with only amphoteric oxides is(are)(2017 Adv.)
======= ####26. The option(s) with only amphoteric oxides is(are)(2017 Adv.)
3e0f7ab6f6a50373c3f2dbda6ca2533482a77bed (a) $\mathrm{NO}, \mathrm{B}{2} \mathrm{O}{3}, \mathrm{PbO}, \mathrm{SnO}_{2}$
(b) $\mathrm{Cr}{2} \mathrm{O}{3}, \mathrm{CrO}, \mathrm{SnO}, \mathrm{PbO}$
(c) $\mathrm{Cr}{2} \mathrm{O}{3}, \mathrm{BeO}, \mathrm{SnO}, \mathrm{SnO}_{2}$
(d) $\mathrm{ZnO}, \mathrm{Al}{2} \mathrm{O}{3}, \mathrm{PbO}, \mathrm{PbO}_{2}$
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Answer:
Correct Answer: 26. (c)
Solution:
- (c) is incorrect because NO is neutral oxide.
(d) is incorrect because $\mathrm{CrO}$ is basic oxide.
