NEET UG 2015 — Inorganic Chemistry

Decreasing order of stability of ${O}_{2}, {O}_{2}^{-}, {O}_{2}^{+}$ and ${O}_{2}^{2-}$ is:

The variation of the boiling points of the hydrogen halides is in the order $HF>HI>HBr>HCl$ . Which of the following option explains the higher boiling point of hydrogen fluoride?

Which of the following options represents the correct bond order?

The species $Ar, {K}^{+}$ and $C{a}^{2+}$ contain the same number of electrons. In which order do their radii increase?

Spin only magnetic moment $2.84 \mathrm{BM}$ is given by: (Atomic Number of $\mathrm{Ni}=28,\mathrm{Ti}=22,\mathrm{Cr}=24,\mathrm{Co}=27$)

The formation of the oxide ion, ${O}^{2-}(g)$ , from oxygen atom requires first an exothermic and then an endothermic step as shown in below: $O(g)+{e}^{-}\longrightarrow {O}^{-}(g) ; {\Delta }_{f}{H}^{\ominus }=-141 kJ mo{l}^{-1}$ ${O}^{-}(g)+{e}^{-}\longrightarrow {O}^{2-} (g) ; {\Delta }_{f}{H}^{\ominus }=+780 kJ mo{l}^{-1}$ Thus process of formation of ${O}^{2-}$ in gas phase is unfavourable though ${O}^{2-}$ is isoelectronic with neon. It is due to the fact that,

The sum of coordination number and oxidation number of metal M in the complex $[M{(en)}_{2}({C}_{2}{O}_{4})]Cl$ (Where en is ethylenediamine) is:

The name of complex ion, ${[Fe{(CN)}_{6}]}^{3-}$ is :

Which of the following species contains equal number of $\sigma$ - and $\pi$ - bonds?

The enolic form of ethyl acetoacetate as below has: 

Cobalt (III) chloride forms several octahedral complexes with ammonia. Which of the following will not give test for chloride ions with silver nitrate at ${25}^{o}C$?

Complex $[Co{(en)}_{2}C{l}_{2}]Cl$ has ........ number of possible isomers. (en = ethylenediamine)

The stability of +1 oxidation state among $\text{Al, Ga, In}$ and $\text{Tl}$ increases in the sequence:

The total number of $\pi$ -bond electrons in the following structure is: 

Strong reducing behaviour of ${H}_{3}P{O}_{2}$ is due to:

Nitrogen dioxide and sulphur dioxide have some properties in common. Which property is shown by one of these compounds, but not by the other?

Which of these statements about ${[Co{(CN)}_{6}]}^{3-}$ is true?

The hybridization involved in complex ${[Ni{(CN)}_{4}]}^{2-}$ is: (Atomic number of Ni = 28)

Gadolinium belongs of 4f series. Its atomic number is 64. Which of the following is the correct electronic configuration of gadolinium?

Because of lanthanoid contraction, which of the following pairs of elements have nearly the same atomic radii? (Number in the parenthesis are atomic numbers).

Which of the statement given below is incorrect?

In which of the following pairs, both the species are not isostructural?

The correct bond order in the following species is:

Maximum bond angle at nitrogen is present in which of the following?