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प्रश्न
An element X reacts with hydrogen, when heated, to form a covalent hydride H2X. If H2X has a smell of rotten eggs, the element X is likely to be ______.
पर्याय
carbon
sulphur
chlorine
phosphorus
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उत्तर
An element X reacts with hydrogen, when heated, to form a covalent hydride H2X. If H2X has a smell of rotten eggs, the element X is likely to be sulphur.
Explanation:
When sulphur is heated with hydrogen, it forms a covalent hydride known as hydrogen sulphide (H2S). This gas has a highly distinctive, foul odour resembling rotten eggs. The chemical equation representing this specific interaction is:
\[\ce{H2 + S -> H2S}\]
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