The bond order is maximum in
[AIIMS 1983, 85; CBSE PMT 1994; MP PET 2002]
B.O. of O2 is 2, B.O. of O−12 is 1.5, B.O. of O+12 is 2.5 and of O2−2 is 1.
A light bulb is placed between two plane mirrors inclined at an angle of The number of images formed are
SCRA 1994; AIIMS 1997; RPMT 1999; AIEEE 2002;
Orissa JEE 2003; MP PMT 2004; MP PET 2004]
Decreasing order of reactivity of HX in the reaction
[RPET 2000; AIIMS 1983; MP PET 1996]
Acetamide is treated separately with the following reagents. Which would give methyl amine
[IIT 1983; CPMT 1988, 94; MP PET 1993;
MP PMT 1996; AIIMS 1998]