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Which of the following compounds has a higher hydration energy than the lattice energy?
The correct order of dipole moments for molecules NH$$_3$$, H$$_2$$S, CH$$_4$$ and HF is:
The half-life period of a first-order reaction is 1386 s. The specific rate constant of the reaction is:
$^{235}_{92}U$ nucleus absorbs a neutron and disintegrates into $^{139}_{54}Xe$, $^{94}_{38}Sr$ and $x$. The product $x$ is:
In the reaction, $\text{BrO}_3^-(aq) + 5\text{Br}^-(aq) + 6\text{H}^+(aq) \rightarrow 3\text{Br}_2(l) + 2\text{H}_2\text{O}(l)$ The rate of appearance of bromine ($\text{Br}_2$) is related to rate of disappearance of bromide ions as following:
The half-life for a zero-order reaction having 0.02 M initial concentration of reactant is 100 s. The rate constant (in mol L⁻¹ s⁻¹) for the reaction is:
The $\text{-OH}$ group of an alcohol or the carboxylic acid can be replaced by $\text{-Cl}$ using:
A reaction having equal energies of activation for forward and reverse reaction has:
In the silver plating of copper, $K[Ag(CN)_2]$ is used instead of $AgNO_3$. The reason is:
Consider the following reaction: $\text{A}_2(g) + \text{B}_2(g) \rightleftharpoons 2\text{AB}(g)$. At equilibrium, the concentrations of $[\text{A}_2] = 3.0 \times 10^{–3} \text{ M}$; $[\text{B}_2] = 4.2 \times 10^{–3} \text{ M}$ and $[\text{AB}] = 2.8 \times 10^{–3} \text{ M}$. The value of $K_c$ for the above-given reaction in a sealed container at $527^\circ\text{C}$ is:
Amongst the given options, which of the following molecules/ions acts as a Lewis acid?
$\text{CH}_3\text{CH}_2\text{CHCl}_2$ upon reaction with $\text{NaNH}_2$ gives:
Boric acid is an acid because its molecule
The following solutions were prepared by mixing different volumes of NaOH and HCl of different concentrations. pH of which one of them will be equal to 1?
The tendency of $BF_3$, $BCl_3$ and $BBr_3$ to behave as Lewis acid decreases in the sequence:
The end product in the below-mentioned reaction is: $\text{H}_3\text{C-Br} \xrightarrow{\text{KCN}} \text{A} \xrightarrow{\text{H}_3\text{O}^+} \text{B} \xrightarrow{\text{LiAlH}_4\text{, Ether}} \text{C}$
Molar conductivities ($\Lambda^{\circ}_m$) at infinite dilution of $NaCl$, $HCl$, and $CH_3COONa$ are $126.4$, $425.9$, and $91.0\text{ S cm}^2\text{ mol}^{-1}$ respectively. $\Lambda^{\circ}_m$ for $CH_3COOH$ will be:
The weight of silver (atomic weight = $108$) displaced by a quantity of electricity which displaces $5600 \text{ mL}$ of $\text{O}_2$ at STP will be :
A compound $\text{BA}_2$ has $K_{sp} = 4 \times 10^{-12}$. Solubility of this compound will be:
At $25^\circ\text{C}$, molar conductance of $0.1 \text{ molar}$ aqueous solution of ammonium hydroxide is $9.54 \text{ ohm}^{-1}\text{cm}^2\text{mol}^{-1}$ and at infinite dilution, its molar conductance is $238 \text{ ohm}^{-1}\text{cm}^2 \text{mol}^{-1}$. The degree of ionization of ammonium hydroxide at the same concentration and temperature is: