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NEET UG CHEMISTRY MCQ: P-BLOCK ELEMENTS

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The substance used in Holme’s signal of the ship is a mixture of
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Correct option: A
CaC2+Ca3P2\mathrm{Ca}{\mathrm{C}_2} + \mathrm{C}{\mathrm{a}_3}{\mathrm{P}_2}
Option A (CaC2+Ca3P2\mathrm{Ca}{\mathrm{C}_2} + \mathrm{C}{\mathrm{a}_3}{\mathrm{P}_2}) is correct because the mixture of calcium carbide and calcium phosphide produces acetylene and phosphine, which ignite spontaneously and produce a bright light, used as a signal on ships.

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