Question
Given below are two statements:
Statement I: The number of pairs among [ ${SiO}_{2},{CO}_{2}$ ], $\left\lbrack SnO,{SnO}_{2} \right\rbrack,\left\lbrack PbO,{PbO}_{2} \right\rbrack$ and $\left\lbrack GeO,{GeO}_{2} \right\rbrack$, which contain oxides that are both amphoteric is 2 .
Statement II : ${BF}_{3}$ is an electron deficient molecule can act as a lewis acid, forms adduct with ${NH}_{3}$ and has a trigonal planar geometry.
In the light of the above statement, choose the correct answer from the option given below.
Options
Solution
$\Rightarrow {SiO}_{2},{CO}_{2},GeO,{GeO}_{2}$ are acidic in nature. $SnO,{SnO}_{2},PbO,{PbO}_{2}$ are amphoteric in nature.
$\Rightarrow {BF}_{3}$ 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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