Identify the type of hybridization involved in hexaaminecobalt (III) complex ion.

Calculate the solubility of a gas in water at $$0.8 \mathrm{~atm}$$ and $$25^{\circ} \mathrm{C}$$.

[Henry's law constant is $$6.85 \times 10^{-4} \mathrm{~mol} \mathrm{~dm}^{-3} \mathrm{~atm}^{-1}$$ ]

What is the value of temperature in degree Celsius at absolute zero ?

Which among the following reactions does NOT correctly match with its reagent?