A) \[0,+4,+4\]
B) \[+2,+2,-2\]
C) \[+4,+4,+4\]
D) \[-4,+4,+2\]
Correct Answer: A
Solution :
:\[C{{H}_{2}}C{{l}_{2}}\] | \[C{{O}_{2}}\] | \[CO_{3}^{2-}\] |
\[+x+2(+1)+2(-1)=0\] | \[x+2(-2)=0\] | \[x+3(-2)=-2\] |
\[x+2-2=0\] | \[x-4=0\] | \[x-6=-2\] |
\[x=0\,x=+4\] | \[x=+4\] |
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