In the reaction $\text{CuO} + \text{H}_2 \xrightarrow{\Delta} \text{Cu} + \text{H}_2\text{O}$: - Copper in CuO has an oxidation state of +2, and in Cu, it is 0. Thus, copper is reduced (gain of electrons/decrease in oxidation state). - Hydrogen in H₂ has an oxidation state of 0, and in H₂O, it is +1. Thus, hydrogen is oxidized (loss of electrons/ increase in oxidation state). This is a redox reaction.
अͧभͩक्रया, $\text{CuO} + \text{H}_2 \xrightarrow{\Delta} \text{Cu} + \text{H}_2\text{O}$, के ͧलए सही कथन है (1) कॉपरि का अपचयन औरि हाइड्रोजन का ऑक्सीकरिण होा है । (2) हाइड्रोजन का अपचयन औरि कॉपरि का ऑक्सीकरिण होा है । (3) कॉपरि औरि हाइड्रोजन दिोनों का अपचयन होा है । (4) यह ऑक्सीकरिण-अपचयन अͧभͩक्रया नहीं है ।
Asked in JUNIOR ACCOUNTANT AND TRA 2013 · Topic: Inorganic Chemistry (Inorganic Reaction Mechanisms)
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Answer: A. कॉपर का अपचयनि और हाइड्रोजनि का ऑक्सीकरण होता है ।
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