Observe the following statements :I. Bleachin | vedclass

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(D) $I$. Bleaching powder $(CaOCl_2)$ reacts with ethanol or acetone to produce chloroform $(CHCl_3)$. This is a standard laboratory preparation metho

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Only $I$ and $II$ are correct

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(D) $I$. Bleaching powder $(CaOCl_2)$ reacts with ethanol or acetone to produce chloroform $(CHCl_3)$. This is a standard laboratory preparation method.$II$. Bleaching powder decomposes in the presence of cobalt chloride $(CoCl_2)$ catalyst to release oxygen gas: $2CaOCl_2 \xrightarrow{CoCl_2} 2CaCl_2 + O_2$.$III$. Fluorine is prepared by the electrolysis of a fused mixture of potassium hydrogen fluoride $(KHF_2)$ and anhydrous hydrogen fluoride $(HF)$. Aqueous $KHF_2$ cannot be used because water would be oxidized to oxygen instead of fluoride ions being oxidized to fluorine gas.Therefore,statements $I$ and $II$ are correct.

Observe the following statements :
$I$. Bleaching powder is used in the preparation of chloroform.
$II$. Bleaching powder decomposes in the presence of $CoCl_2$ to liberate $O_2$.
$III$. Aqueous $KHF_2$ is used in the preparation of fluorine.
The correct combination is :

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Observe the following statements :$I$. Bleaching powder is used in the preparation of chloroform.$II$. Bleaching powder decomposes in the presence of $CoCl_2$ to liberate $O_2$.$III$. Aqueous $KHF_2$ is used in the preparation of fluorine.The correct combination is :