List of top Chemistry Questions asked in BITSAT

Hybridisation and geometry of [Ni(CN)$_4$]$^{2-$ are:}
One molar concentration of a solution represents:
The charge on colloidal particles is due to:
In which of the following molecules, all bond lengths are not equal?
Which of the following substances show the highest colligative properties?
Calculate the molarity of a solution containing 5 g of NaOH dissolved in the product of H$_2$ – O$_2$ fuel cell operated at 1 A current for 595.1 hours.(Assume F = 96500C/mol of electron and molecular weight of NaOH as 40 g/mol).
Which of the following is the strongest Bronsted base?
The pH of 0.5 L of 1.0 M NaCl solution after electrolysis for 965 s using 5.0 A current is:
58.5 g of NaCl and 180 g of glucose were separately dissolved in 1000 mL of water. Identify the correct statement regarding the elevation of boiling point of the resulting solution.
The metal that shows highest and maximum number of oxidation states is:
Which of the following has least tendency to liberate H$_2$ from mineral acids?
The chemical composition of 'slag' formed during the smelting process in the extraction of copper is:
Dinitrogen is a robust compound, but reacts at high altitude to form oxides. The oxide of nitrogen that can damage plant leaves and retard photosynthesis is:
Calamine, malachite, magnetite, and cryolite, respectively, are:
In a first-order reaction, the concentration of the reactant decreases from 0.8 M to 0.4 M in 15 minutes. The time taken for the concentration to change from 0.1 M to 0.025 M is:
Among the ligands \( {NH}_3, \, {en}, \, {CN}^-, \, {CO} \), the correct order of their increasing field strength is:
Which named reaction contains dichlorocarbene intermediate?

Which of the following factors affect the basic strength of amines? 
(i) Inductive effect
(ii) Steric hindrance
(iii) Solvation effect
(iv) Solubility in organic solvents
 

In the laboratory, manganese (II) salt is oxidized to permanganate ion in aqueous solution by:
Element with electronic configuration \( 1s^2 2s^2 2p^6 3s^2 3p^6 3d^{10} 4s^2 4p^6 4d^{10} 5s^2 5p^3 \) belongs to the following group of the periodic table:
The drug used as an antidepressant is:

Among the given halides, which one will give the same product in both S\(_N1\) and S\(_N2\) reactions? 

How much ethyl alcohol must be added to 1 litre of water so that the solution will freeze at \(-14^\circ \text{C}\)? 

(Kf for water = 1.86 °C/mol)

The reaction that does NOT take place in a blast furnace between 900K to 1500K temperature range during extraction of iron is:
Electrode potential data are given below: \[ {Fe}^{3+}({aq}) + e^- \rightarrow {Fe}^{2+}({aq}); E^\circ = +0.77 \, {V} \] \[ {Al}^{3+}({aq}) + 3e^- \rightarrow {Al}({s}); E^\circ = -1.66 \, {V} \] \[ {Br}_2({aq}) + 2e^- \rightarrow 2{Br}^-({aq}); E^\circ = +1.08 \, {V} \] Based on the data, the reducing power of \( {Fe}^{2+} \), Al, and \( {Br}^- \) will increase in the order: