what is holmes signal? what is its use
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Explanation:
Holmes signal - A mixture of calcium carbide and calcium phosphide placed in a container which reacts with water to produce gases (PH3 and C2H2) which burn and thus guide the ships in sea.so PH3 gas that is called PHOSPHINE is used in holmes signal.
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Explanation:
Holmes signal - a mixture of calcium carbide and calcium phosphide placed in a container which reacts with water to produce gasses ( PH3 and C2H2) which burn and thus guide the ships in the sea .
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