Could someone please help me??

Sum of ionisation energies is very high.

Let's check once .

Group 13 means boron family.

Electronic configuration is given by

Look at p orbital .

Its first ionisation enthalpy is that much high that it needs a lots of energy to form ionic compounds by donating that.

So boron family is unable to form ionic compounds easily .

it would be b. 6co2 + 6h2o --> c6h12o6 + 6o2

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hope i !