List of top Questions asked in BITSAT

Among the following, the correct statements are:
Statement I – Nature of Saline (Ionic) Hydrides
Statement II – Volatility of Saline Hydrides
Statement III – Nature of Electron-Precise Hydrides
Statement IV – Formula of Chromium Hydride

Which of the following is only a redox reaction but not a disproportionation reaction?

Volume of M/8 KMnO$_4$ solution required to react completely with 25.0 cm$^3$ of M/4 FeSO$_4$ in acidic medium is:

What is the stoichiometric coefficient of SO$_2$ in the following balanced reaction? \[ {MnO}_4^-(aq) + {SO}_2(g) \rightarrow {Mn}^{2+}(aq) + {HSO}_4^-(aq) \] (in acidic solution)

20 mL of 0.1 M acetic acid is mixed with 50 mL of potassium acetate. $ K_a $ of acetic acid $ = 1.8 \times 10^{-5} $ at 27°C. Calculate the concentration of potassium acetate if the pH of the mixture is 4.8.

The pH of 1 N aqueous solutions of HCl, CH$_3$COOH and HCOOH follows the order:

The ratio $ \frac{K_p}{K_c} $ for the reaction \[ {CO}(g) + \frac{1}{2} {O}_2(g) \rightleftharpoons {CO}_2(g) \] is:

Le-Chatelier's principle is not applicable to

Choose the correct option for free expansion of an ideal gas under adiabatic condition from the following:

The combustion of benzene (L) gives CO$_2$ (g) and H$_2$O (L). Given that heat of combustion of benzene at constant volume is -3263.9 kJ/mol at 25°C, heat of combustion (in kJ/mol) of benzene at constant pressure will be: (R = 8.314 J$K^{-1}$ $mol^{-1}$)

The standard Gibbs energy ($ \Delta G^{\circ} $) for the following reaction is \[ A(s) + B^{2+}(aq) \rightleftharpoons A^{2+}(aq) + B(s), \quad K_c = 10^{12} \, {at} \] (Kc = equilibrium constant)

Which of the following relation is not correct?

The bond dissociation energy of X$_2$, Y$_2$ and XY are in the ratio of 1 : 0.5 : 1. $\Delta H$ for the formation of XY is -200 kJ/mol. The bond dissociation energy of X$_2$ will be

What would be the amount of heat absorbed in the cyclic process shown below?

sp$^3$ d$^2$ hybridisation is not displayed by:

Identify the species having one $\pi$-bond and maximum number of canonical forms from the following:

Which one of the following compounds is having maximum 'lone pair-lone pair' electron repulsions?

The spin only magnetic moment of Fe$^{3+}$ ion (in BM) is approximately.

In the following species, how many species have the same magnetic moment?
(i) Cr$^{2+}$
(ii) Mn$^{3+}$
(iii) Ni$^{2+}$
(iv) Sc$^{2+}$
(v) Zn$^{2+}$
(vi) V$^{3+}$
(vii) Ti$^{4+}$

The hybridisation scheme for the central atom includes a d-orbital contribution in

Intramolecular hydrogen bonding is found in

The ionic radii in (${Å}$) of ${N}^{3-}$, ${O}^{2-}$ and ${F}^-$ are respectively.

Electron affinity is positive when:

A stream of electrons from a heated filament was passed between two charged plates at a potential difference $ V $ volt. If $ e $ and $ m $ are the charge and mass of an electron, then the value of $ \frac{h}{\lambda} $ is:

A photon of wavelength $ 3000 $ Å strikes a metal surface. The work function of the metal is $ 2.13 $ eV. What is the kinetic energy of the emitted photoelectron? ($ h = 6.626 \times 10^{-34} $ Js)