MCQ
When a solute is present in trace quantities the following expression is used
- AGram per million
- BMilligram percent
- CMicrogram percent
- ✓Parts per million
It is defined as the quantity of the solute in grams present in $10^6 \,grams$ of the solutions.
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$HC \equiv CH\mathop {\xrightarrow{{NaN{H_2},C{H_3}COC{H_3}}}}\limits_{{H^ + }} X\mathop {\xrightarrow{{H{g^{2 + }},{H_3}{O^ + }}}}\limits_{{H_2}O} Z$ is
$O _{2}^{+}, O _{2}, O _{2}^{-}, O _{2}^{2-}$
For increasing bond order the correct option is ..... .