The correct statement about probability density (except at infinite distance from nucleus) is:
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The correct statement about probability density (except at infinite distance from nucleus) is:
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The correct order of the ionic radii of $$\text{O}^{2-}$$, $$\text{N}^{3-}$$, $$\text{F}^-$$, $$\text{Mg}^{2+}$$, $$\text{Na}^+$$ and $$\text{Al}^{3+}$$ is:
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The increasing order of boiling points of the following compounds is:
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The compound that has the largest $$H-M-H$$ bond angle ($$M = N, O, S, C$$) is:
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Lattice enthalpy and enthalpy of solution of NaCl are $$788\,\text{kJ mol}^{-1}$$ and $$4\,\text{kJ mol}^{-1}$$, respectively. The hydration enthalpy of $$NaCl$$ is:
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Hydrogen peroxide, in the pure state, is:
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The one that is NOT suitable for the removal of permanent hardness of water is:
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Among the following compounds, geometrical isomerism is exhibited by:
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The final major product of the following reaction is:
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The major product formed in the following reaction is:
$$\text{CH}_2\text{CH} = \text{CHCH(CH}_3)_2 \xrightarrow{\text{HBr}}$$
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An element crystallises in a face-centred cubic (fcc) unit cell with cell edge $$a$$. The distance between the centres of two nearest octahedral voids in the crystal lattice is:
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The variation of molar conductivity with concentration of an electrolyte (X) in aqueous solution is shown in the given figure.
The electrolyte X is:
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The rate constant $$(k)$$ of a reaction is measured at different temperature $$(T)$$, and the data are plotted in the given figure. The activation energy of the reaction in $$\text{kJ mol}^{-1}$$ is: (R is gas constant)
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Adsorption of a gas follows Freundlich adsorption isotherm. If $$x$$ is the mass of the gas adsorbed on mass $$m$$ of the adsorbent, the correct plot of $$\frac{x}{m}$$ versus $$p$$ is:
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Boron and silicon of very high purity can be obtained through:
Reaction of ammonia with excess $$Cl_2$$ gives:
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Consider the complex ions, trans-$$[\text{Co(en)}_2\text{Cl}_2]^+$$ (A) and cis-$$[\text{Co(en)}_2\text{Cl}_2]^+$$ (B). The correct statement regarding them is:
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The major product of the following reaction is:
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Which one of the following polymers is not obtained by condensation polymerisation?
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The following molecule acts as an:
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For a dimerization reaction,
$$2A(g) \to A_2(g)$$
at 298K, $$\Delta U^- = -20\,\text{kJ mol}^{-1}$$, $$\Delta S^- = -30\,\text{JK}^{-1}\text{mol}^{-1}$$, then the $$\Delta G^-$$ will be .....J.
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For a reaction $$X + Y = 2Z$$, $$1.0\,\text{mol}$$ of X, $$1.5\,\text{mol}$$ of Y and $$0.5\,\text{mol}$$ of Z were taken in a 1L vessel and allowed to react. At equilibrium, the concentration of Z was $$1.0\,\text{mol L}^{-1}$$. The equilibrium constant of the reaction is $$\frac{x}{15}$$. The value of x is.......
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The volume, in mL, of $$0.02\,\text{M}\,\text{K}_2\text{Cr}_2\text{O}_7$$ solution required to react with $$0.288\,\text{g}$$ of ferrous oxalate in acidic medium is............ (Molar mass of Fe = $$56\,\text{g mol}^{-1}$$)
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Considering that $$\Delta_0 > P$$, the magnetic moment (in BM) of $$[\text{Ru}(\text{H}_2\text{O})_6]^{2+}$$ would be
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The number of chiral carbons present in sucrose is..........
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