Explore topic-wise InterviewSolutions in Current Affairs.

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For the reduction of $N{O}_3^{-}$ ion in an aqueous solution $E^o$ is $0.96V$. Values of $E^o$ for some metal ions are given below:

$V^{2+}\left(aq\right)+2e^{-}\to V;E^o=-1.19VF{e}^{3+}\left(aq\right)+3e^{-}\to Fe;E^o=-0.04VA{u}^{3+}\left(aq\right)+3e^{-}\to Au;E^o=1.40VH{g}^{2+}\left(aq\right)+2e^{-}\to Hg;E^o=+0.86V$

The pair(s) of metals that is/are oxidised by $N{O}_3^{-}$ in aqueous solution is (are):

If $x,y$ and $z$ are the electronegativity, ionisation potential and electron-affinity respectively. Then the electron affinity $\left(z\right)$ in the terms of electronegativity $\left(x\right)$ and ionisation potential $\left(y\right)$ will be:

Zone refining is a method to obtain ____________

Redox reactions include

The compressibility factor of an ideal gas is –

Provide the structure of the major organic product which results in the following E2 reaction.

Equal masses of water and a liquid of density 1 unit and 2 unit are mixed together, then the mixture has a density of

Van't Hoff factor of centimolal solution of $K_3\left[Fe{\left(CN\right)}_6\right]$ is $3.333$. Calculate the percent dissociation of $K_3\left[Fe{\left(CN\right)}_6\right]$.

Which of the following compound(s) will undergo tautomerism?

A single compond of the structure :



is obtainable from ozonolysis of which of the following cyclic compounds ?

In an imperfect crystal , both cation and anion have left the lattice. The cystal defect is known as

Which of the following is a water pollutant?

Calculate the molarity of $40\%\left(\frac{w}{W}\right)$ $NaOH$ solution, if density is $d\text{g/mL}$

Which of the following will be most readily dehydrated in acidic conditions?

An is drawn in between the reactants and products while writing the equation for a chemical reaction.

The molar heat capacity of oxygen gas is given by the expression $C_v=a+bT+c{T}^2$ where $a,b$ and $c$ are constants. What will be the change in the internal energy of $8\text{g}$ of oxygen, if it is heated from $200\text{K}$ to $300\text{K}$ at constant volume? Assume oxygen to be an ideal gas. (Given, $a=1.2{\text{JK}}^{-1}{\text{mol}}^{-1}$, $b=12.8\times {10}^{-2}{\text{JK}}^{-2}{\text{mol}}^{-1}$, $c=1.0\times {10}^{-7}{\text{JK}}^{-3}{\text{mol}}^{-1}$).

A gas expands against a variable pressure given by $P=\frac{20}{V}$ (where $P$ in $\text{atm}$ and $V$ in $L$). During expansion from volume $1\text{L}$ to $10\text{L}$, the gas undergoes a loss in internal energy of $400\text{J}$. How much heat is absorbed by the gas during expansion?

Even though air contains $78\%$ nitrogen, $20\%$ oxygen by volume and formation of $NO$ is thermodynamically feasible, they do not combine to form $NO$. This is because

What is formed when oxalic acid is dehydrated by conc.$H_{2}S{O}_4$