Chemistry Test-...

Boric acid used in talcum powder serves as a/an:

The complex ion \(\left[\mathrm{N i}(\mathrm{C N})_{4}\right]^{2-}\) is:

For a dilute solution, Raoult's law states that:

For the equilibrium, \(CuSO _{4} \cdot 5 H _{2} O (s)\) \(CuSO _{4} \cdot 3 H _{2} O ( s )+2 H _{2} O ( g ), K_{p}=1.086 \times 10^{-4}\) atm \(^{-2}\) at \(25^{\circ} C\). The efflorescent nature of \(CuSO SO _{4} \cdot 5 H _{2} O ( s )\) can be noticed when the vapour pressure of water in the atmosphere is (in \(mm Hg\) ).

Nylon 66 is a condensation polymer of hexamethylenediamine and;

The number of moles of KMnO₄ reduced by one mole of KI in alkaline medium is:

The enthalpy of vaporisation of a substance is \(8400{~J} {~mol}^{-1}\) and its boiling point is \(-173.15^{\circ}{C}\). The entropy change for vaporisation is:

The elements occupying left and right side groups of periodic table are called _________ elements.

Which of the following will produce only one product on reduction with \(\mathrm{LiAlH}_{4}\) ?

The chemical name for melamine is: