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B
SiCl4 is easily hydrolysed
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C
GeX4(X=F,Cl,Br,I) is more stable than GeX2
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D
SnF4 is ionic in nature
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Solution
The correct option is APbF4 is covalent in nature PbF4 is ionic in nature. The size of the cation Pb4+ is large and the size of the anion F− is very small. According to Fajan's rule, the bond formed between them will be ionic.