Let oxidation number of \(S\) in \({S_2}{F_2}\) be \(x\)
\(2x + 2( - 1) = 0\)
\(2x - 2 = 0\)
\(2x = 2;\,x = + 1\)
Let oxidation number of \(S\) in \(H_2S\) be \(x\).
\(2( + 1) + x = 0\)
\(2 + x = 0\)
\(x = - 2\)
$S _{8( s )}+ a OH ^{-}_{( aq )} \rightarrow b S ^{2-}_{( aq )}+ c S _{2} O _{3}{ }^{2-}{ }_{( aq )}+ d H _{2} O _{(\ell)}$
$'a'$ નું મૂલ્ય ............ છે. (પૂર્ણાક જવાબ)