In which of the following molecule/ion all the bonds are not equal?
(i) XeF4
(ii) BF4–
(iii) C2H4
(iv) SiF4
In which of the following molecule/ion all the bonds are not equal?
(i) XeF4
(ii) BF4–
(iii) C2H4
(iv) SiF4
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1 Answer
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This is a Multiple Choice Questions as classified in NCERT Exemplar
Ans: Option (iii)
(i) The molecule XeF4 has a square planar geometry and the bond lengths of all the fluoride atoms attached to xenon atoms are equal.
(ii) The molecule BF4 - has a tetrahedral geometry and the bond lengths of all the fluoride bonds attached to boron are equal.
(iii) In the molecule C2H4 all the bonds are not equal. The bond length of the double bond between the carbon atoms is 134 pm and the bond length of CH- is 110 pm.
(iv) The molecule SiF4 has a tetrahedral geometry and the bond lengths of all the fluoride atoms attached to silicon atoms are equal.
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