# Find the degree of unsaturation of the following.

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Find the degree of unsaturation of the following.

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(a) No. of π bonds = 3, no. of rings = 1

D.U = 3+1 = 4

(b) No. of π bonds = 5, no. of rings = 2

D.U = 5+2 = 7

(c) No. of π bonds = 1, no. of rings = 2

D.U = 1+2 = 3

(d) No. of π bonds = 2, no. of rings = 1

D.U = 2+1 = 3