MCQ
Oxidation number of $P$ in $K{H_2}P{O_2}$ is
- ✓$+1$
- B$+3$
- C$+5$
- D$-4$
$1 + 2 + x + ( - 2 \times 2) = 0$
$3 + x - 4 = 0$; $x = + 1$.
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${H_2}O\, \rightleftharpoons \,{H^ + } + O{H^ - }$ at $25\,^oC$ is.....$kJ$
$\mathop C\limits^\Theta {H_3},\mathop N\limits^\Theta {H_2},\,\mathop O\limits^\Theta H,\,\mathop C\limits^\Theta l$