A) Two
B) Three
C) Four
D) Six
Correct Answer: A
Solution :
Valency of \[N{{a}_{2}}{{S}_{2}}{{O}_{3}}\] is supposed to be x, then \[2+2x+(-\,6)=0\], \[2x-4=0\], \[x=2\].You need to login to perform this action.
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