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Which of the following reacts with PCl3 to form PCl5?(a) O2(b) N2(c) S(d) Cl2I had been asked this question by my college professor while I was bunking the class.My enquiry is from P-Block Elements topic in chapter P-Block Elements of Chemistry – Class 12

Answer»

Right CHOICE is (d) Cl2

Easy explanation: PHOSPHORUS trichloride (PCl3) REACTS with chlorine GAS (Cl2) to FORM phosphorus pentachloride (PCl5).

PCl3(g) + Cl2(g) → PCl5(g).



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