Both have resonance, (common)
But (1) = 2 degree carbocation
(2) = 1 degree carbocation
VIJAY PREMRAJ SAINI
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Equation:- 3a - Nb = 5
There are 3 cases possible.
(1). N= 3k
(a-kb) = 5/3
since a, k and b are integers, (a-kb) can't be a fraction. (Contradiction)
Hence, N can never be a multiple of 3.(Condition for no integral solution)
if b is in the form of 3x+1(x is an integer), there is always at least 1 integral solution possible.
if b is in the form of 3x+2 (x is an integer), there is always at least 1 integral solution possible.
Hence, there is no integral solution possible for equation 3a – Nb = 5 when N is multiple of 3.
There are 13 multiples of 3 in the range from 0-40 (both exclusive)