1.

How would you expect the bond strength to change in the series C_(2) to C_(2)^(-) to C_(2)^(2-)?

Answer»

GETS stronger than weaker
gets Weaker
gets stronger
gets weaker than stronger

Solution :`C_(2)rarr (sigma_(1s))^(2)(sigma_(1s)^(**))^(2)(sigma_(2S))^(2)(sigma_(2s)^(**))^(2)(pi_(2p_(x)))^(2)(pi_(2p_(y)))^(2)`
`B.O=(4-0)/(2)=2`
`C_(2)^(-)rarr(sigma_(1s))^(2)(sigma_(1s)^(**))^(2)(sigma_(2s))^(2)(sigma_(2s)^(**))^(2)(pi_(2p_(x)))^(2)(pi_(2p_(y)))^(2)(sigma_(2p_(z)))^(1)`
`B.O=(5-0)/(2)=2.5`
`C_(2)^(2-)rarr(sigma_(1s))^(2)(sigma_(1s)^(**))^(2)(sigma_(2s))^(2)(sigma_(2s)^(**))^(2)(pi_(2p_(x)))^(2)(pi_(2p_(y)))^(2)(sigma_(2p_(z)))^(2)`
`B.O=(6-0)/(2)=3`
As BOND order is increasing it implies bond strength is increasing.


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