IIT-JEE Exam

The percentage of p-character in the orbitals forming P−P bonds in P4 is
(A) 25 (B) 33
(C) 50 (D) 75

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IIT-JEE Other Question

The species having bond order different from that in CO is
(A) NO− (B) NO+
(C) CN− (D) N2 Extraction of zinc from zinc blende is achieved by
(A) electrolytic reduction (B) roasting followed by reduction with carbon
(C) roasting followed by reduction with another metal (D) roasting followed by self-reduction