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Many hundred years ago, a ship was transporting calcium carbide and calcium phosphide (stored in different container). By chance sea-water entered sea and luminous flame appeared a ghost would have come. However, a chemist travelling in it explained it based on reactions. These reactions are
\(\underset{Calcium \, \, Carbide}{CaC_2} + 6H_2O \longrightarrow Ca(OH)_2+ \underset {Acetylene}{C_2H_2} \, \, \, \, \, \, \, \, \, \, \, \, \underset { Calcium \, \, phosphide}{Ca_3P_2} + 6H_2O \longrightarrow 3Ca(OH)_2+\underset {Phosphine}{2PH_3}\)


(A) True
(B) False

Answer

Answer: A
\(CaC_2\) and \(Ca_3P_2\) both were stored in containers but when water reacted with them \(PH_3\) and \(C_2H_2\) were formed. Some highly spontaneously flammable gases (\(P_2H_4\) and \(H_2\)) are also formed and as a result of this, \(C_2H_2\) gas also burns (which people assumed as a ghost). So the reaction and statements are true.
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