List of top Chemistry Questions asked in BITSAT

In the reaction \[ \text{Br}_2 + 6 \text{CO} \to 3 \text{H}_2 + \text{Br}^+ + 3 \text{CO}_3 \]

The following two compounds are: 

When chlorine water is exposed to sunlight, \( \text{O}_2 \) is liberated. Hence,
Formation of ozone in the upper atmosphere from oxygen takes place by the action of:
An extremely hot copper wire reacts with steam to give:
The boiling point of water is exceptionally high because
Which of the following gives maximum value of enthalpy of physiolysis?
\( \text{CO}_2 \) goes to air, causes greenhouse effect and gets dissolved in water. What will be the effect on soil fertility and pH of the water?
Which of the following has correct increasing basic strength?
\( 2N_2O_5 \to 4NO_2 + O_2 \) If rate and rate constant for above reaction are \( 2.40 \times 10^{-5} \, \text{mol L}^{-1} \text{s}^{-1} \) and \( 3 \times 10^{-5} \, \text{s}^{-1} \), respectively, then calculate the concentration of \( N_2O_5 \):
Alizarin is an example of:
2,4-Dichlorophenoxyacetic acid is used as:
The pOH value of a solution whose hydroxide ion concentration is $6.2 \times 10^{-9}$ mol/litre is
The preparation of ethyl acetoacetate involves:
In which of the following reactions, standard entropy change $(\Delta S^{\circ})$ is positive and standard Gibb?s energy change $(\Delta G^{\circ})$ decreases sharply with increasing temperature ?
An ideal gas can?t be liquefied because
Complete hydrolysis of cellulose gives
The reaction, $SO _{2}+ Cl _{2} \longrightarrow SO _{2} Cl _{2}$ is exothermic and reversible. $A$ mixture of $SO _{2}( g ), Cl _{2}( g )$ and $SO _{2} Cl _{2}(l)$ is at equilibrium in a closed container. Now a certain quantity of extra $SO _{2}$ is introduced into the container, the volume remaining the same. Which of the following is/are true?
$0.45 \,g$ of acid molecular weight $90$ is neutralised by $20\, ml$ of $0.5\,N$ caustic potash. The basicity of acid is
If the radius of $H$ is $0.53\, ? $, then what will be the radius of $_3Li^{2+}$ ?
Which of the following does not have valence electron in $3d$-subshell?
The van�t Hoff factor $i$ for an electrolyte which undergoes dissociation and association in solvents are respectively
Which of the following is process used for the preparation of acetone?
Which alkene on ozonolysis gives \(CH_3CH_2CHO\) and
Bond enthalpies of $H_2, X_2$ and $HX$ are in the ratio $2 : 1 : 2$. If enthalpy of formation of $HX$ is $-50 \,kJ \,mol^{-1}$, the bond enthalpy of $H_2$ is