1.
The number ofpie electrons present in 2.6 g of ethyne
(1) 2.40 x 1024
(3) 2.40 x 1023
(2) 2.40 * 1025
(4) 1.20 x 1023
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No. of π- bond = 2
No. of electron involved in 2π bond =4(2 electron each )
No. of moles of ethyne =
Now ,
Number of electron in 0.1 mole of ethyne
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