Explore topic-wise InterviewSolutions in Current Affairs.

For the reaction $N_2\left(g\right)+3H_2\left(g\right)\rightleftharpoons 2N{H}_3\left(g\right),\Delta H=-ve$. The formation of $N{H}_3\left(g\right)$ is favored a

what is the charge in 75 Kg of electrons

When two reactants, A and B are mixed to give products C and D such that
A + B $\leftrightharpoons$ C + D

the reaction quotient, Q = $\frac{\left[C\right]\left[D\right]}{\left[A\right]\left[B\right]}$ at the final stages of the reaction

Arrange the following alkenes in order of their decreasing heat of combustion values:

Calculate the wavelength of H alpha in Balmer series of hydrogen atom.

$KH{F}_2$ is stable and exists unlike $KHB{r}_{2}andKH{I}_2$ reason is _____

The enzyme present in yeast is

Solid SO₃ exists as:

Which of the following compound is isoelectronic with
$[H_{3}N:B{H}_3]$ ?

Which of the following reactants yield ethane?

Nylon is a:

Calculate the Normality of a solution having 15 gm equivalents. Dissolved in 750 mL solution.

The compressibility factor for nitrogen at 330 K and 800 atm is 1.90 and at 570 K and 200 atm is 1.10. A certain mass of $N_2$ occupies a volume of 1 $d{m}^3$ at 330 K and 800 atm. Calculate the volume occupied by same quantity of $N_2$ gas at 750 K and 200 atm.

Assuming that the Pauli exclusion principle is non-existent, which of the following will be the most unacceptable configuration of Li in the ground state?

The characteristic features of solids are

[AMU 1994]

The frequency associated with photon of radiation having a wavelength of $6000A^0$ is

3 moles of A ($P_A^0$=200mm of Hg) and 2 moles of B($P_B^0$ =300mm of Hg) are mixed at a fixed temperature. The vapours above the solution are collected and condensed. Than:

Define bond enthalpy and bond dissociation enthalpy

The excess pressure inside a soap bubble is (Here, S_la is the surface tension between the liquid-air interface).

Three elements $X,YandZ$ are in the $3^{rd}$ period of the periodic table. The oxides of $X,Y‘andZ$, respectively, are basic amphoteric and acidic, the correct order of the atomic numbers of $X,YandZ$ is:

The correct ascending order of adsorption of the following gases on the same mass of charcoal at the same temperature and pressure is:

Arrange the following oxides in the decreasing order of their acidic strengths.
$I.ZnO$ $II.K_{2}O$ $III.P_2{O}_5$ $IV.MgO$

During the charging of a lead storage battery the reaction at the cathode is-

$AgN{O}_3\left(aq\right)$ was added to an aqueous KCl solution gradually and the conductivity of the solution was measured. The plot of conductance (A) versus the volume of $AgN{O}_3$ is

(IIT-JEE, 2011)

A hydrocarbon contains $86\%$ carbon, 488ml of the hydrocarbon weight 1.68 g at STP. Then the hydrocarbon is an

Equal weights (1.00 g) of iron and sulphur are heated together and react to form $FeS$. What fraction of the original weight is left unreacted ? $(Fe=56gmo{l}^{-1},S=32gmo{l}^{-1})$

The molarity of $20\%.\left(\frac{V}{V}\right)H_{2}S{O}_4$ is 2.55M, the density of the sulphuric acid solution which was put in is

When $KMn{O}_4$ acts as an oxidizing agent & ultimately forms $[Mn{O}_4{]}^{2-},Mn{O}_2,M{n}_2{O}_3,M{n}^{+2},$ then the number of electrons transferred in each case respectively is

What volume of $0.40M{H}_{2}S{O}_4$ is required to produce $34.0g$ of $H_{2}S$ ? $8KI+5H_{2}S{O}_4\to 4K_{2}S{O}_4+4I_2+H_{2}S+4H_{2}O$

Oxidation state of Oxygen in $K{O}_2$ is

Arrange the following compounds in decreasing order of their reactivity with sodium methoxide in methanol at ${50}^{\circ }$ C.

In which of the following equilibria, the value of $K_P$ is less than $K_C$

Which of the following is heterocyclic?

Mycorrhizae is the symbiotic association of a __ with root system.

Which of the following is not correct regarding Terylene

Which of the following will show a positive haloform test?

Grignard reagents (RMgX) are potential sources of carbanions because of

During debromination of meso-2,3-dibromobutane,the major compound formed is

Which of the following reactions occurs at the cathode of a common dry cell

[NCERT 1978]

Find X and Y

A branched polysaccharide containing α - D - Glucose which are linked by 1 - 4 & 1- 6 glycosydic linkages is