Consider the reaction : (a) `6CO_(2)(g)6H_(2)O(l)rarrC_(6)H_(12)O_(6)(s)+6O_(2)(g)`
(b)`O_(3)(g)+H_(2)O(l)rarrH_(2)O(l)+2O_(2)(g)`
Why it is more appropriate to write these reactions ad :
(a)`6CO_(2)(g)+12H_(2)O(l)rarrC_(6)H_(12)O_(6)+6H_(2)O(l)+6O_(2)(g)`
(b)`O_(3)(g)+H_(2)O(l)rarrH_(2)O(l)+O_(2)(g)+O_(2)(g)`
Also suggest technique to investigate path of the above (a) and (b) redox reaction

Explanation

(A) Allthought the meachanism of photoynthesis is very complex but broadly speaking it may be visualized to occur in two steps in the first step `H_(2)O` decomposes to give `H_(2)` and `O_(2)` in presence of chlorophyll as the `H_(2)` thus produced reduces `CO_(2)` to `C_(6)H_(12)O_(16)`in the second step during the second step some `H_(2)O` molecules are also produced as show below
`12H_(2)O(I)rarr12H_(2)(g)+6O_(2)(g)`
`6CO_(2)(g)+12H_(2)(g)rarrC_(6)H_(12)O_(6)(s)+6H(2)O(l)`
`6CO_(2)(g)+12H_(2)O(l)rarrC_(6)H_(12)O_(6)H_(12)O_(6)(s)+6H_(2)O(l)+6O_(2)(g)`
therefore it is more appropriate to write the equation for photosythesis as (iii) because it imphasis that `12 H_(2)O` are used per molecule of cabohydrate formed and 6