In KO₂, the nature of oxygen species and the oxydation state of oxygen atom are, respectively :

Lithium aluminium hydride reacts with silicon tetrachloride to form :

If x gram of gas is adsorbed by m gram of adsorbent at pressure P, the plot of log $${x \over m}$$ versus log P is linear. The slope of the plot is :
(n and k are constants and n > 1)

The correct order of electron affinity is :