Which one of the following is not a good leaving group ?

Related Mcqs:

Which of the following set has all species isoelectronic__________________?

A. F – Cl – Br B. Li+1 – Na+1 – K+1 C. F – Ne – Na+ D. H+ – H- – H...

Water absorber used in combustion analysis is___________________?

A. 50% KOH B. Lime water C. CaCl2 D. Mg (CIO4)2...

Which molecule has the highest bond energy among the halogens_________________?

A. Fluorine B. Chlorine C. Iodine D. Bromine...

The most paramagnetic element is____________________?

A. Iron B. Cobalt C. Chromium D. Manganese...

A real gas obeying vander waals equation will resemble the ideal gas if_______________________?

A. Both a and b are small B. Both a and b are large C. a is small and b is large D. a is large and b is small...