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The standard reduction potentials at 298 K for the following half reactions are given:



Which is the strongest reducing agent?

$Z{n}^{2+}(aq.)+2e\rightleftharpoons Zn\left(s\right);-0.762$

$C{r}^{3+}\left(aq\right)+3e\rightleftharpoons Cr\left(s\right);-0.740$

$2H^{+}\left(aq\right)+2e\rightleftharpoons H_2\left(g\right);0.00$

$F{e}^{3+}\left(aq\right)+e\rightleftharpoons F{e}^{2+}\left(aq\right);0.770$

Dettol is the mixture of

EMF of the cell, $Ag|AgN{O}_3\left(0.1M\right)|KBr\left(1N\right),AgBr\left(s\right)|Ag$ is $-0.6\text{V}$ at $298\text{K}$

Calculate the $K_{sp}$ of $AgBr$ at $298\text{K}$.

In the electrolytic refining of copper using $CuS{O}_4$ as the electrolyte, the anode reaction is

From the $\alpha$-particle scattering experiment, Rutherford concluded that

For a liquid, enthalpy of fusion is $1.435kcalmo{l}^{-1}$ and molar entropy change is $5.26calmo{l}^{-1}{K}^{-1}$ The melting point of the liquid is:

The correct expression for Langmuir adsorption isotherm is

An ideal gas is initially at temperature $T$ and volume $V$ and at constant pressure, its volume increases by $\Delta V$ due to an increase in temperature by $\Delta T$. The quantity $\mu =\Delta V/V\Delta T$ varies with temperature as:

Which of the following oxyanions contain S-S (single bond)?

In the electrolysis method of $D_2$O, electrolyte used is

Draw Fischer projections for the following substitution reaction:

According to Bohr's theory

Number of oxygen atoms present in 1 gram of calcium carbonate are

$C{H}_3-\underset{C{H}_2-C{H}_3}{\underset{|}{C}}=CH-C{H}_2-C{H}_2-C{H}_3$

Which of the following are fertilizers?

The ratio of $\sigma$ and $\pi$ bonds in benzene is

In which of the following molecules, central atom is $s{p}^3$ hybridised?

Arrange the compounds in the order of decreasing boiling points.

1. Butane

2. 1,2,3-Pentane triol

3. Butyl alcohol

The outermost electronic configuration of the second most electronegative element is :

By which mechanism does the above reaction proceed ?

Chloro compound of Vanadium has only spin magnetic moment of 1.73 BM. This Vanadium chloride has the formula: (at. no. of V = 23)

Which one of the following is employed as an antihistamine?

The order in which the atomic radius increases is as follows

The values of $I{P}_1,I{P}_2,I{P}_3$ and $I{P}_4$ of an atom are $7.5eV,25.6eV,48.6eV$ and $170.6eV$ respectively. The electronic configuration of the atom will be:

For any value of alkyl group (R), the correct order of basic character of the $1^o,2^o,3^o$ amines and $N{H}_3$ in gaseous phase of non polar solvent is:

Of the following which one is classified as polyester polymer ?

Sort out the following in the order of increasing acidity:

Pt(s) | Sn²⁺ (aq, 1 M), Sn⁴⁺ (aq, 1 M) || Fe²⁺ (aq, 1 M), Fe³⁺ (aq, 1 M) | Pt(s)

Anode reaction is:

Which of the following reactions represent the thermite reaction?

Electrolyte can conduct electricity because

The general formula of alkane is

Which of the following is not a possible termination step in the free radical chlorination of methane?

The wrong statement about the isoelectric point is:

The halide which undergoes nucleophilic substitution most readily is

Which of the following does not obey octet rule?

Which one of the following orbital is filled first in case of $N_2$?

Vapour pressure of a solution of 5g of non-electrolyte in 100g of water at a particular temperature is 2985 N/m². The vapour pressure of pure water is 3000 N/m². The molecular weight of the solute is:

A + B + C → Products is

The reaction that takes place in the Clarke's process is