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Answer the following questions about the structure of the dimer of phosphorous pentaoxide
(a) The number of $P - 0$ linkage which have bond length equal to 1.43 A.
(b) The number of covalent bonds which have bond length equal to 1.60 A.
(c) The number of P-0-P linkages.
(d) The number of lone pair(s) of electrons on each phosphorous atom.

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a	b	c	d
4	12	6	0

a	b	c	d
0	9	4	1

a	b	c	d
9	3	4	5

a	b	c	d
5	6	8	1

answer is A.

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Detailed Solution

$(a) P = O \to 4$

$(b) P - O \to 12$

$(c) P - O - P \to 6$

$(d) 1, p, on P \to 0$ In CuSO4.5H2O all Cu - O bond length are not equal. Find the total number of shorter Cu - O bonds.

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