Chemistry

The IUPAC name of the following compound is:

The intermolecular potential energy for the molecules A, B, C and D given below suggest that:

The ionic radii of ${\mathrm{O}}^{2-},{\mathrm{F}}^{-},{\mathrm{N}\mathrm{a}}^{+}$ and ${\mathrm{M}\mathrm{g}}^{2+}$ are in the order:

On heating, lead (II) nitrate gives a brown gas (A). The gas (A) on cooling changes to a colourless solid/liquid (B). (B) on heating with NO changes to a blue solid (C). The oxidation number of nitrogen in solid $\left(C\right)$ is:

The pair in which both the species have the same magnetic moment (spin only) is:

The region in the electromagnetic spectrum where the Balmer series lines appear is:

The decreasing order of reactivity of the following organic molecules towards ${\mathrm{A}\mathrm{g}\mathrm{N}\mathrm{O}}_3$ solution is:

Among statements (a) - (d), the correct ones are:

(a) Lime stone is decomposed to $\mathrm{C}\mathrm{a}\mathrm{O}$ during the extraction of iron from its oxides.

(b) In the extraction of silver, silver is extracted as an anionic complex.

(c) Nickel is purified by Mond's process.

(d) Zr and Ti are purified by Van Arkel method.

In the estimation of bromine, 0.5g of an organic compound gave 0.40g of silver bromide. The percentage of bromine in the given compound is____________% (Nearest integer)

(Relative atomic masses of Ag and Br are 18 u and 80 u, respectively).

Number of complexes which will exhibit synergic bonding amongst $\left[Cr{\left(CO\right)}_6\right],\left[Mn{\left(CO\right)}_5\right]$  and $\left[M{n}_2{\left(CO\right)}_{10}\right]$  is_______________.