Explore topic-wise InterviewSolutions in Current Affairs.

One
of the reactions that takes place in producing steel from iron ore is
the reduction of iron (II) oxide by carbon monoxide to give iron
metal and CO₂.
FeO (s) + CO (g)

Fe
(s) + CO₂
(g); K_p=
0.265 at 1050 K. What are the equilibrium partial pressures of CO and
CO₂
at 1050 K if the initial partial pressures are: p_CO
= 1.4 atm and CO₂

=
0.80 atm?

Consider the following reactions:

$\left(i\right)H^{+}\left(aq\right)+O{H}^{–}\left(aq\right)\to H_{2}O\left(l\right),\Delta H=–X_1{\text{kJ mol}}^{–1}$

$\left(ii\right)H_2\left(g\right)+\frac{1}{2}{O}_2\left(aq\right)\to H_{2}O\left(l\right),\Delta H=–X_2{\text{kJ mol}}^{–1}$

$\left(iii\right)C{O}_2\left(g\right)+H_2\left(g\right)\to CO\left(g\right)+H_{2}O\left(l\right),\Delta H=–X_3{\text{kJ mol}}^{–1}$

$\left(iv\right)C_2{H}_2\left(g\right)+\frac{5}{2}{O}_2\left(g\right)\to 2C{O}_2\left(g\right)+H_{2}O\left(l\right),\Delta H=X_4{\text{kJ mol}}^{–1}$

Enthalpy of formation of $H_{2}O\left(l\right)$ is:

While preparing hydrochloric acid back suction can be avoided by

Predict the product of below reaction:

The cooling in the refrigerator is due to?

The osmotic pressure of a solution of an organic substance containing $18g$ in one litre of solution at $293K$ is $2.414\times {10}^{5}N{m}^{-2}$. Find the molecular mass of the substance if $S=8.3J{K}^{-1}$ per mol

The conductivity of $0.001MN{a}_{2}S{O}_4\text{solution is}2.6\times {10}^{-4}Sc{m}^{-1}$ and increases to $7.0\times {10}^{-4}Sc{m}^{-1}$, when the solution is saturated with $CaS{O}_4.$ The molar conductivities of $N{a}^{+}\text{and}C{a}^{2+}\text{are}50\text{and}120Sc{m}^{2}mo{l}^{-1}$, respectively. Neglect conductivity of used water. What is the solubility product of $CaS{O}_4?$

Which of the following is/are true in case of molecules?

The carboxyl functional group (–COOH) is present in

Suppose an electron is attracted towards the origin by a force $\frac{k}{r}$, where $k$ is a constant and $r$ is the distance of the electron from the origin. By applying the Bohr model to this system, the radius of the $n^{th}$ orbital of the electron is found to be $r_n$ and the kinetic energy of the electron to be $K_n$. Then, which of the following is true ?

A certain metal when irradiated with light $(\nu =3.2\times {10}^{16}Hz)$ emits photoelectrons with twice kinetic energy of photoelectrons that are emitted when the same metal is irradiated by light $(\nu =2.0\times {10}^{16}Hz)$. Calculate ${\nu }_o$ of electron.

The mirror image of following figure is



निम्नलिखित चित्र का दर्पण प्रतिबिंब है

$\underset{–}{\text{Assertion}}$ (A): The boiling point of HF is higher than that of $H_{2}O$.
$\underset{–}{\text{Reason}}$ (R): The hydrogen bond strength in HF is lower than that in $H_{2}O$.

Two isomers of $C_6{H}_{12}$ on hydrogenation gives the same product. The product is

The force in member CF is

Look at this enamine:



Which of the following sequence converts benzaldehyde into the given enamine?



1: Oxidation with Cr(VI) compound

2: reaction with pyrrolidine with pH control; acid catalyst

3: $MeMgBrfollowedby{H}_3{O}^{+}$

According to Arrhenius equation rate constant k is equal to $A.e^{-E_a/RT.}$

Which of the following options represents the graph of ln k vs $\frac{1}{T}$?

Match the four starting meterials (P, Q, R, S) given in List – I with the corresponding reaction schemes

(I, II, III, IV) provided in List – II and select the correct answer using the code given below the lists.

Balance the following equation by ion electron method

_{Na2S2O3+I2=Na2S4O6+NaI}

How did this experience affect him?

Calculate work done $w$ for the conversion of $0.5$ moles of water at $100{}^{\circ }C$ to steam at $1atm$ pressure. Heat of vaporisation of water at $100{}^{\circ }C$ is $40670Jmo{l}^{-1}$