List of top Chemistry Questions asked in VITEEE

A bubble of air is underwater at temperature 15°C and the pressure 1.5 bar. If the bubble rises to the surface where the temperature is 25°C and the pressure is 1.0 bar, what will happen to the volume of the bubble?

In CuSO₄ solution when electric current equal to 2.5 Faraday is passed, the gram equivalent deposited on the cathode is

Match List I (Equations) with List II (Types of process) and select the correct option.

Following compounds are given (i) $CH _{3} CH _{2} OH$ (ii) $CH _{3} COCH _{3}$ (iii) $CH _{3}- \underset{\overset{|}{C}H_3}{C}HOH$ (iv) $CH _{3} OH$ Which of the above compound(s) on being warmed with iodine solution and $NaOH$, will give iodoform?

The order of reactivity of phenyl magnesium bromide $(PhMgBr)$ with the following compounds

The pressure exerted by $6.0 \,g$ of methane gas in a $0.03\, m ^{3}$ vessel at $129^{\circ} \,C$ is (Atomic masses: $C =12.01, \,H =1.01$ and $\left.R=8.314\, JK ^{-1} \,mol ^{-1}\right)$

Some of the properties of the two species, $NO _{3}^{-}$and $H _{3} O ^{+}$are described below. Which one of them is correct?

What is the value of electron gain enthalpy of $Na^+$ if $IE_1$ of $Na = 5.1 \,eV$ ?

In the following reaction, $C_6H_5CH_2Br \ce{->[{(i) \text{Mg,Ether}}][{(ii) H_3O^+}] X }$ the product ' $X$ ' is

Which has the maximum number of molecules among the following ?

Which of the following compound is the most basic ?

Fructose reduces Tollen's reagent due to

Which one of the following compounds will be most readily dehydrated ?

Which one of the following compounds will be most readily dehydrated ?

Some statements about heavy water are given below. (i) Heavy water is used as moderator in nuclear reactors (ii) Heavy water is more associated than ordinary water (iii) Heavy water is more effective solvent than ordinary water Which of the above statements are correct?

The reaction, $2 A(g)+B(g) \rightleftharpoons 3 C(g)+D(g)$ is begun with the concentrations of $A$ and $B$ both at an initial value of $1.00\, M .$ When equilibrium is reached, the concentration of $D$ is measured and found to be $0.25\, M$. The value for the equilibrium constant for this reaction is given by the expression

Assertion (A): \( \text{Cu}^{2+} \) and \( \text{Cd}^{2+} \) are separated by first adding KCN solution and then passing H\(_2\)S gas. Reason (R): KCN reduces \( \text{Cu}^{2+} \) to \( \text{Cu}^+ \) and forms a complex with it.

The effective atomic number of cobalt in the complex \( [\text{Co(NH}_3)_6]^{3+} \) is:

In which of the following octahedral complexes of Co (At no. 27), will the magnitude of \( \Delta_o \) be the highest?

The IUPAC name for the complex \( [\text{Co(NO}_3)_6\text{NH}_3]^{3+} \) is:

Amongst \( \text{Ni(CO)}_4 \), \( [\text{Ni(CN)}_4]^{2-} \), and \( [\text{NiCl}_4]^{2-} \), which is paramagnetic?

The freezing point of a solution composed of 10.0 g of KCl in 100 g of water is 4.5°C. Calculate the van't Hoff factor, \(i\), for this solution.

The EMF of the cell, \[ \text{Mg}^{2+}(0.01M) \parallel \text{Sn}^{2+}(0.1M) \parallel \text{Sn at 298K} \] is:

Compound A and B are treated with dil. HCl separately. The gases liberated are Y and Z respectively. Y turns acidified dichromate paper green while Z turns lead acetate paper black. The compound A and B are respectively:

Heat of formation, \( \Delta H_f \), of an explosive compound like NC\( _3 \) is: