In which of the following molecule/ion all the bonds are not equal?
(i) XeF4
(ii) BF4–
(iii) C2H4
(iv) SiF4
NCERT Class XI
Chemistry - Exemplar Problems
Chapter 4. Chemical bonding and molecular structure
Answers
Answered by
61
Answer: In (ii), BF4- the bond is not equal.
Explanation:
(i) In XeF4, the configuration of Xe is sp3d2 which have 2 lone pairs on it.
(ii) In BF4-, the boron has 3 electrons which makes the covalent bond with 4 fluorides.
(III) In C2H4, there are C-C sigma bond and four C-H sigma bond.
(iv) In SiF4, the configuration of Si is sp3 which makes a sigma bond with an overlapping orbital of fluoride.
Answered by
9
Answer:
BF4- is the answer
Explanation:
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