MCQ
The oxidation state of phosphorous is ............. in phosphoric acid.
- A+1
- B+3
- C+5
- D-1
Explanation:
The oxidation state of P is +5 in phosphoric acid.
The structure is given below
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$C_2H_4(g) + H_2(g) \to C_2H_6(g)$
| Bond | Bond energy $(kJ)$ |
| $C-H$ | $413$ |
| $C-C$ | $348$ |
| $C=C$ | $610$ |
| $H-H$ | $436$ |