A) + 2
B) + 3
C) + 4
D) + 5
Correct Answer: A
Solution :
\[[\overset{*\,\,\,}{\mathop{Co}}\,{{(N{{H}_{3}})}_{4}}ClN{{O}_{2}}]\] \[x+4(0)+1(-1)+1(-1)=0\] \[x+0-1-1=0\] \[x-2=0\]; \[x=+2\].
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