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Chemistry Question on Bond Parameters

The correct order of bond enthalpy (kJmol−1)\left( kJ mol ^{-1}\right) is :

A

C−C>Si−Si>Ge−Ge>Sn−SnC - C > Si - Si > Ge - Ge > Sn - Sn

B

C−C>Si−Si>Sn−Sn>Ge−GeC - C > Si - Si > Sn - Sn > Ge - Ge

C

Si−Si>C−C>Ge−Ge>Sn−SnSi - Si > C - C > Ge - Ge > Sn - Sn

D

Si−Si>C−C>Sn−Sn>Ge−GeSi - Si > C - C > Sn - Sn > Ge - Ge

Answer

C−C>Si−Si>Ge−Ge>Sn−SnC - C > Si - Si > Ge - Ge > Sn - Sn

Explanation

Solution

(Bond enthalpy order )
C−C>Si−Si>Ge−Ge>Sn−Sn)C−C>Si−Si>Ge−Ge>Sn−Sn)

The Correct Option is (A): C−C>Si−Si>Ge−Ge>Sn−SnC - C > Si - Si > Ge - Ge > Sn - Sn