A) \[-3,+6\]and +6
B) \[+5,+3\]and +6
C) \[+3,+6\]and +5
D) +5, +6 and +6
Correct Answer: D
Solution :
Oxidation no. in each case. \[PO_{4}^{3-}\] \[x+4(-2)=-3x=+5\] \[SO_{4}^{2-}\] \[x+(-2\times 4)=-2\] \[x-8=-2\] \[x=-2+8x=+6\] \[C{{r}_{2}}O_{7}^{2-}\] \[2x+(-2\times 7)=-2\] \[2x-14=-2\] \[2x=-2+14\] \[2x=12\] \[x=+6\]You need to login to perform this action.
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