1.

Which of the following gas is used as Holmes signal?(a) Hydrogen per oxide(b) Nitrogen(c) Acetylene(d) PhosphineThe question was posed to me in semester exam.This is a very interesting question from P-Block Elements in portion P-Block Elements of Chemistry – Class 12

Answer»

Right option is (d) Phosphine

Easy EXPLANATION: When a MIXTURE of calcium carbide and calcium phosphide placed in a container is made to react with WATER, it produces the GASES phosphine and acetylene. This signal produced due to the burning gases is called HOLMES signal.



Discussion

No Comment Found

Related InterviewSolutions