NEET 2015 Code A - Mock Test

Decreasing order of stability of ${\text{O}}_2,{\text{O}}_2^{-},{\text{O}}_2^{+}$ and ${\text{O}}_2^{2-}$ is:

The number of water molecules is maximum in:

In which of the following pairs, both the species are not isostructural?

In the reaction with $\text{HCl}$, an alkene reacts in accordance with the Markovnikov’s rule, to give a product $1$ -chloro-$1$ -methylcyclohexane. The possible starting alkene is:

Assuming complete ionization, same moles of which of the following compounds will require the least amount of acidified ${\text{KMnO}}_4$ for complete oxidation?