Given below are two statements : Statement I : The number of pairs among [SiO2, CO2], [SnO, SnO2], [PbO, PbO2] and [GeO, GeO2], which contain oxides that are both amphoteric is 2. Statement II : BF3 i

Question

Given below are two statements : Statement I : The number of pairs among [SiO2, CO2], [SnO, SnO2], [PbO, PbO2] and [GeO, GeO2], which contain oxides that are both amphoteric is 2. Statement II : BF3 is an electron deficient molecule can act as a lewis acid, forms adduct with NH3 and has a trigonal planar geometry. In the light of the above statement, choose the correct answer from the option given below.

(A) Both Statement I and Statement II are true.
(B) Both Statement I and Statement II are false.
(C) Statement I is true but Statement II is false.
(D) Statement I is false Statement II is true.

Prashant Kotian · Accepted Answer

Correct answer: A.  SiO2 , CO2 , GeO , GeO2 are acidic in nature. SnO, SnO2 , PbO , PbO2 are amphoteric in nature.  BF3 is lewis acid acoording to lewic octet theory and has sp 2 hybridization with trigonal planar geometry and it can accept lone pair form ammonia to form adduct.

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