List of top Chemistry Questions asked in BITSAT

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

Which of the following method is used for coagulation of the sol?
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:
The helical structure of a protein is stabilized by:
The photochemical smog does not generally contain:
Kinetic theory of gases proves:
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 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?
In the laboratory, manganese (II) salt is oxidized to permanganate ion in aqueous solution by:
Find out compound B in the given reaction sequence: \[ {C}_6{H}_6 + {CH}_3X \xrightarrow{{AlCl}_3} A \xrightarrow{{CrO}_3 { in } (CH_3CO)_2O / H_3O^+} B \]

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

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?
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? \[ {Al} (s) + {NaOH} (aq) + {H}_2O (l) \rightarrow x + {H}_2 (g) \]
Ionic hydrides react with water to give:

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 probability density plots of 1s and 2s orbitals are given in figure. 

 

The density of dots in a region represents the probability density of finding electrons in the region. On the basis of the above diagram, which of the following statements is incorrect?