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Given below are two statements : Statement (I): SiO2 and GeO2 are acidic while SnO and PbO are amphoteric in nature. Statement (II): Allotropic forms of carbon are due to property of catenation and pπ-dπ bond formation. In the light of the above statements, choose the most appropriate answer from the options given below :

1. Both statement I and statement II are false
2. Both statement I and statement II are true
3. Statement I is false but statement II is true
4. Statement I is true but statement II is false

Correct answer: Statement I is true but statement II is false

Solution

Statement I is correct because SiO2 and GeO2 exhibit acidic properties, while SnO and PbO can react with both acids and bases, classifying them as amphoteric. Statement II is incorrect because while carbon's allotropic forms are influenced by catenation, the pπ-dπ bond formation is not a primary factor in their structural diversity.

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