Explore topic-wise InterviewSolutions in Current Affairs.

Discuss the nature of bonding in the following coordination entities on the basis of valence bond theory:
$\left[Fe\right(C{N}_6){]}^{4-}$

$[Fe{F}_6{]}^{3-}$

$\left[Co\right(C_2{O}_4{)}_3{]}^{3-}$

$[Co{F}_6{]}^{3-}$

Which of the following statement(s) is/are correct regarding inter-halogen compounds of ABx types?

Graphite cannot be classified as ..............

(a) conducting solid (b) network solid

(c) covalent solid (d) lonic solid

Given:
$N_2\left(g\right)+3H_2\left(g\right)\rightleftharpoons 2N{H}_3\left(g\right);K_1$
$N_2\left(g\right)+O_2\left(g\right)\rightleftharpoons 2NO\left(g\right);K_2$
$H_2\left(g\right)+\frac{1}{2}{O}_2\left(g\right)\rightleftharpoons H_{2}O\left(g\right);K_3$
where $K_1,K_2,K_3$ are equilibrium constants.
The equilibrium constant for the reaction,
$2N{H}_3\left(g\right)+\frac{5}{2}{O}_2\left(g\right)\rightleftharpoons 2NO\left(g\right)+3H_{2}O\left(g\right)$ will be:

Arrange the following carbanions in decreasing order of stability.

Predict the products of electrolysis in each of the following:
An aqueous solution of $AgN{O}_3$ with silver electrodes

Predict the products of electrolysis in each of the following:
An aqueous solution $AgN{O}_3$ with platinum electrodes

Predict the products of electrolysis in each of the following;
A dilute solution of $H_{2}S{O}_4$ with platinum electrodes.

Predict the products of electrolysis in each of the following:
An aqeuous solution of $CuC{l}_2$ with platinum electrodes.

The mass to charge ratio (m/e) for a univalent cation is 1.5 $\times$ ${10}^{-8}$ Kg/c. Find mass of the atom.

The main product of the following reaction $C_6{H}_{5}C{H}_{2}CH\left(OH\right)CH(C{H}_3{)}_2\stackrel{Conc.H_{2}S{O}_4}{\to }?$

The de-Broglie wavelength of a particle with mass 1gm and velocity 100m/sec is

Which of the following are iso-electronic and iso-structural?

$N{O}_3^{-}$, $C{O}_3^{2-}$, $Cl{O}_3^{-}$, $S{O}_3$

Explain why reactivity of lithium with water is less vigorous than sodium

Q1) Ministry of Water Resources, River Development and Ganga Rejuvenation launched a nationwide water campaign “Jal Kranti Abhiyan”. Consider the following statements:

1) It is to consolidate water conservation and management in the country.

2) The activities under the scheme will be carried out exclusively by central government

3) New funds will be allocated for expenditure on various works proposed under the scheme

4) It will enhance livelihood security through reliable availability of acceptable quantity and quality of water in rural areas

Which of the above statements are correct?

Which of the following sets contain only isoelectronic ions?
(i) $Z{n}^{2+},C{a}^{2+},G{a}^{3+},A{l}^{3+}$

(ii) $K^{+},C{a}^{2+},S{c}^{3+},C{l}^{-}$

(iii) $P^{3-},S^{2-},C{l}^{-},K^{+}$

(iv) $T{i}^{4+},Ar,C{r}^{3+},v^{5+}$

Pick the odd pair out.

The average life of an excited state of hydrogen atom is of the order of ${10}^{8}s$. The number of revolutions made by an electron when it is in state n = 2 and before it suffers a transition to state n = 1, are

An unknown compound gives a positive iodoform test and positive Fehling's test. The compound is:

The alkene which on ozonolysis gives only acetone is:

IUPAC name of Na₃[Co(NO₂)₆] is:

Which of the following is formed by Finkelstein Reaction?

n – Propyl bromide reacts with ethanolic KOH to form

Partial pressures of $A,B,C$ and $D$ on the basis of gaseous system

$A+2B$ $\rightleftharpoons$ $C+3D$ are $A=0.20;B=0.10;C=0.30$ and $D=0.50atm$. The

numerical value of equilibrium constant is

Ethanol is prepared industrially by [MP PMT 1989]

A mixture of $C_6{H}_{5}CHO$ and $HCHO$ is treated with $NaOH$, then the Cannizzaro’s reaction involves:

What transition in the hydrogen spectrum would have the same wavelength as the Balmer transition n = 4 to n = 2 of $H{e}^{+}$ spectrum?

Which of the following pair(s) is/are functional isomer(s)?

The correct order of $+I$ strength for the following groups
$-C{H}_3,-C{H}_{2}R,-C{D}_3$ is :
(Here $R$ is any alkyl group ).

Three footballs are respectively filled with nitrogen, hydrogen and helium. If the leaking of the gas occurs with time from the filling hole, then the ratio of the rate of leaking of gases $(r_{N_2}:r_{H_2}:r_{He})$ from three footballs (in equal time interval) is:

The decomposition reaction,
$4HN{O}_3\left(g\right)\rightleftharpoons 4N{O}_2\left(g\right)+2H_{2}O\left(g\right)+O_2\left(g\right)$ is started with pure $HN{O}_3\left(g\right)$. If $p$ is the total pressure at equilibrium, then

Ice is used in a cooler in order to cool its contents. Which of the following will speed up the cooling process?

Which of the substances A, B and C has the lowest heat capacity, if heat is supplied to all of them at equal rates? The temperature versus time graph is shown:

How much faster would a reaction proceed at ${25}^{\circ }C$ than at $0^{\circ }C$ if the activation energy is 65 kJ?

Vapour pressure of a solution is:

The solubility product of $Cr(OH{)}_3$ at $298\text{K}$ is $6\times {10}^{-31}$ . The concentration of hydroxide ions in a saturated solution of $Cr(OH{)}_3$ will be:

Explain the effect of increasing the temperature of a liquid, on intermolecular forces operating between its particles. What will happen to the viscosity of a liquid if its temperature is increased?

The bond enthalpy of $H_2\left(g\right)$ is $436\text{kJ/mol}$ and that of $N_2\left(g\right)$ is $941.3\text{kJ/mol}$. Calculate the average bond enthalpy of an N - H bond in ammonia.
$\Delta H_f^{\circ }\left(N{H}_3\right)=-46\text{kJ/mol}$

The sodium salt of a certain weak monobasic organic acid is hydrolysed to an extent of 3% in its 0.1 M solution at ${25}^{\circ }C$ given that the ionic product of water is ${10}^{-14}$ at this temperature, what is the dissociation constant of the acid?