List of top Chemistry Questions asked in BITSAT

Which of the following pairs will form the most stable ionic bond?
Which one of the following molecular hydrides acts as a Lewis acid?
The conductivity of a weak acid HA of concentration 0.001 mol L\(^{-1}\) is \( 2.0 \times 10^{-5} \, \text{S cm}^{-1} \). If \( \Lambda_m^\circ ({HA}) = 190 \, \text{S cm}^2 \text{mol}^{-1} \), the ionization constant (\( K_a \)) of HA is equal to _______ \( \times 10^{-6} \).
Which of the following method is used for coagulation of the sol?

For the separation of two immiscible liquids, which method is used?

The drug used as an antidepressant is:
Plots showing the variation of the rate constant (k) with temperature (T) are given below. The plot that follows the Arrhenius equation is:
Melamine plastic crockery is a copolymer of:
Kinetic theory of gases proves:
The helical structure of a protein is stabilized by:
The photochemical smog does not generally contain:
The reaction that does NOT take place in a blast furnace between 900K to 1500K temperature range during extraction of iron is:
Which method is useful for the synthesis of ether?
Ionic hydrides react with water to give:
In the laboratory, manganese (II) salt is oxidized to permanganate ion in aqueous solution by:

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
 

Find out compound B in the given reaction sequence: \[ {C}_6{H}_6 + {CH}_3X \xrightarrow{{AlCl}_3} A \xrightarrow{{CrO}_3 { in } (CH_3CO)_2O / H_3O^+} B \]
Which of the following will precipitate first when an aqueous solution containing sulphate ions is added?
If enthalpies of formation of \( {C}_2{H}_4(g) \), \( {CO}_2(g) \) and \( {H}_2{O}(l) \) at 25°C and 1 atm pressure are 52, 394 and -286 kJ/mol respectively, the change in enthalpy for combustion of \( {C}_2{H}_4 \) is equal to:
Which named reaction contains dichlorocarbene intermediate?

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

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 \( {S} - {S} \) bond is not present in:
Among the ligands \( {NH}_3, \, {en}, \, {CN}^-, \, {CO} \), the correct order of their increasing field strength is:
What is \( x \) in the following reaction? \[ {Al} (s) + {NaOH} (aq) + {H}_2O (l) \rightarrow x + {H}_2 (g) \]