Answer the question on the basis of passage given below :
Nitrogen differs from rest of the members of group 15 due to its small size, high electronegativity, high ionization enthalpy and non-availability of d orbitals. Nitrogen has unique ability to form pa - pa multiple bonds with itself and with other elements having small size and high electronegativity. Heavier elements of this group do not form pa - pr bonds as their atomic orbitals are so large and diffuse that they cannot have effective overlapping.
Arrange the following in decreasing order of their basic strength :
A. PH3 \(_3\)
B. \(AsH _3\)
C. \(NH _3\)
D. \(SbH _3\)
E. \(BiH _3\)
Choose the correct answer from the options given below:

The carboxylic acid that does not undergo Hell-Volhard-Zelinsky reaction is:

On passing ammonia gas through a solution of copper sulphate, a deep blue solution is obtained.
The deep blue colour of the solution is due to the formation of :

\(\text{KMnO}_4\) is a versatile oxidising agent and it can act as a very strong oxidising agent in acidic medium. Identify the correct statement.

Which among the following metals shows 6 secondary valencies ?
(A) 1 mole of \(PdCl _2 \cdot 4 NH _3\) reacts with excess of \(AgNO _3\) to give 2 moles of AgCl precipitated
(B) 1 mole of \(NiCl _2 \cdot 6 H _2 O\) reacts with excess of \(AgNO _3\) to give 2 moles of AgCl precipitated
(C) 1 mole of \(PtCl _4 \cdot 2 HCl\) does not give reaction with \(AgNO _3\)
(D) 1 mole of \(CoCl _3 \cdot 4 NH _3\) reacts with excess of \(AgNO _3\) to give 1 mole of AgCl precipitated
(E) 1 mole of \(PtCl _2 \cdot 2 NH _3\) does not give reaction with \(AgNO _3\)
Choose the correct answer from the options given below :

What is the correct Nernst equation for the following cell?
\(Zn(s)|Zn^{2+}||Ag^{+}|Ag(s)\)

Select the high spin complexes from the following:
(A) \(\left[ Ni ( CN )_4\right]^{2-}\)
(B) \(\left[ Fe ( CN )_6\right]^{3-}\)
(C) \(\left[ MnBr _4\right]^{2-}\)
(D) \(\left[ Fe \left( H _2 O \right)_6\right]^{2+}\)
Choose the correct answer from the options given below:

Which of the following statements are true about phosphorous cycle?
A. There is no respiratory release of phosphorus in the atmosphere
B. The reservoir of phosphorus is rock
C. There are large atmospheric inputs of phosphorus through rainfall
D. The gaseous exchange of phosphorus between organisms and environment is negligible
Choose the correct answer from the options given below:

Read the passage carefully and answer the questions:
The degeneracy of the \(d\) orbitals has been removed due to ligand electron-metal electron repulsions in the octahedral complex to yield three orbitals of lower energy, \(t_{2 g}\) set and two orbitals of higher energy, \(e_g\) set. This splitting of the degenerate levels due to the presence of ligands in a definite geometry is termed as crystal field splitting and the energy separation is denoted by \(\Delta_0\). Thus energy of the two \(e_g\) orbitals will increase by \((3 / 5) \Delta_{\circ}\) and that of three \(t_{2 g}\) will decrease by \((2 / 5) \Delta_0\). The crystal field splitting \(\Delta_{ o }\) depends upon the field produced by the ligand and charge on the metal ion. Some ligands are able to produce strong fields, in which case the splitting will be large, whereas others produce weak fields and consequently result in small splitting of \(d\) orbitals. Relative magnitude of crystal field splitting energy \(\Delta_{\circ}\) and pairing energy, \(P\) (energy required for electron pairing in a single orbital) determine the formation of low spin ( \(\Delta_0>P\) ) or high spin ( \(\Delta_0<P\) ) complex. In tetrahedral coordination entity formation, the \(d\)-orbital splitting is inverted and is smaller as compared to the octahedral field splitting. The crystal field theory attributes the colour of the complex to \(d-d\) transition of the electron. The colour of the coordination compounds depends on the crystal field splitting. In the absence of ligand, crystal field splitting does not occur and hence the substance is colourless.
Choose the correct order of the ligands in their increasing crystal field splitting:

What will be the energy required to remove the electron from the first excited state of \( Li^{++} \), if the ground state energy of the electron in a hydrogen atom is -13.6 eV?

The number of mono bromo structural isomers formed by free radical bromination of isopentane are

For a normal human eye, rearrange the parts of the eye as they are situated in the path of the light entering the eye:
(A) Vitreous Humor
(B) Cornea
(C) Ciliary muscles
(D) Aqueous Humor
(E) Retina
Choose the correct answer from the options given below:

A and B are two students. Their chances of solving a problem correctly are \(\frac{1}{3}\) and \(\frac{1}{4}\) respectively.
If the probability of their making a common error is \(\frac{1}{20}\) and they obtain the same answer, then the probability that their answer is correct is: