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What is the valency of Carbon in C2H2?

What is the valency of Carbon in C2H2?

Grade:12

2 Answers

Suyash Verma
12 Points
6 years ago
Here, carbon has 4 valency......
According to the electronic configuration
C-> 1s22s22p2, here there are 2 unpaired elctrons, 
but the excitation w1hile bonding (exchange energy)
results in the replacement of e- (with -1/2 spin) from 2s to 2p (+1/2 spin).
this leaves the carbon atom with 4 unpaired elcetrons which gets paired during 
hybridisation; 
1s22s12p3
Hence it has 4 valency......
Umakant biswal
5359 Points
6 years ago
@ mudit 
in c2h2 carbon forms 1 triple bond , it shares 3 electron here . 
carbon doesnot gain or loose electron , it only shares the electron . 
so, valency of carbon will be same for every compound as for ethene , ethyle , and ethane . 
HOPE IT CLEARS 
ALL THE BEST ..

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