Chemistry Test ...

Calculate the number of unit cells present in \(1 {~g}\) of gold which has face centered cubic lattice.

Which one of the following statements regarding Henry's law is not correct?

The value of \(K_{c}\) for the reaction: \(A+3 B \rightleftharpoons 2 C\) at \(400^{\circ} {C}\) is \(0.5 .\) Calculate the value of \({Kp}\).

The expression relating mole fraction of solute \(\left(\mathrm{x}_2\right)\) and molarity \((\mathrm{M})\) of the solution is:

The compound which has one isopropyl group is-

A mixture is known to contain \(\mathrm{NO}_{3}^{-}\)and \(\mathrm{NO}_{2}^{-}\). Before performing ring test for \(\mathrm{NO}_{3}^{-}\)the aqueous solution should be made free of \(\mathrm{NO}_{2}^{-}\). This is done by heating aqueous extract with:

Solid \({Ba}\left({NO}_{3}\right)_{2}\) is gradually dissolved in a \(1.0 \times 10^{-4} {M} {Na}_{2} {CO}_{3}\) solution. At which concentration of \({Ba}^{2+}\), precipitate of \({BaCO}_{3}\) begins to form?

\(\left({K}_{{sp}}\right.\) for \(\left.{BaCO}_{3}=5.1 \times 10^{-9}\right)\)

The equation of state for \(5 \mathrm{~g}\) of oxygen at a pressure \(\mathrm{P}\) and temperature \(\mathrm{T}\), when occupying a volume \(V\), will be:

A compound processes 8% sulphur by mass.The least molecular mass is:

Which among the following is an allylic halide?