Which of the following ionic or molecular spe | vedclass

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(D) $NO_2$ disproportionates in water: $2NO_2 + H_2O 	o HNO_3 + HNO_2$. The $HNO_2$ further disproportionates at room temperature $(R.T.)$ to form $H

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$Ca(OCl)Cl$

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(D) $NO_2$ disproportionates in water: $2NO_2 + H_2O 	o HNO_3 + HNO_2$. The $HNO_2$ further disproportionates at room temperature $(R.T.)$ to form $HNO_3$ and $NO$.$Cu^{+}$ ions are unstable in aqueous solution and undergo disproportionation: $2Cu^{+}(aq) 	o Cu(s) + Cu^{2+}(aq)$.$MnO_4^{2-}$ (manganate ion) is unstable in neutral or acidic medium and disproportionates: $3MnO_4^{2-}(aq) + 2H_2O(l) 	o 2MnO_4^-(aq) + MnO_2(s) + 4OH^-(aq)$.$Ca(OCl)Cl$ (bleaching powder) is a salt that dissociates in water into $Ca^{2+}$,$Cl^-$,and $OCl^-$ ions. It does not undergo disproportionation in water at room temperature.

Which of the following ionic or molecular species does not disproportionate in water at room temperature?

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