List of top Chemistry Questions asked in VITEEE

Given that the equilibrium constant for the reaction $ {2SO2(g) + O2(g) <=> 2SO3(g)}$ has a value of278 at a particular temperature. What is the value of the equilibrium constant for the following reaction at the same temperature? $ {SO3(g) <=> SO2(g) + \frac{1}{2} O2(g)}$

Compound 'A' of molecular formula $C_4H_{10}O$ on treatment with Lucas reagent at room temperature gives compound ?B\ When compound ?B? is heated with alcoholic $KOH$, it gives isobutene. Compound ?A? and ?B? are respectively

In the extraction of Cu, the metal is formed in the bessemer converter due to the reaction:

In a compound, atoms of element Y form ccp lattice and those of element X occupy $2/3^{rd}$ of tetrahedral voids. The formula of the compound will be

In case of nitrogen, $NCl_3$ is possible but not $NCl_5$ while in case of phosphorus, $PCl_3$ as well as $PCl_5$ are possible. It is due to

Ionisation energy of $He^+$ is $19.6 \times 10^{-18}\, J$ atom$^{-1}$. The energy of the first stationary state $(n= 1)$ of $Li^{2+}$ is

In Williamson synthesis if tertiary alkyl halide is used than

An element occuring in the bcc structure has $12.08 \times 10^{23}$ unit cells. The total number of atoms of the element in these cells will be

Which of the following compounds is formed when a mixture of $K_2Cr_2O_7$ and NaCl is heated with cone. $H_2SO_4$ ?

The reagent (s) which can be used to distinguish acetophenone from benzophenone is (are)

The molecular formula of diphenyl methane, How many structural isomers are possible when one of the hydrogens is replaced by a chlorine atom?

The correct order of the thermal stability of hydrogen halides (H-X) is

For which one of the following systems at equilibrium, at constant temperature will the doubling of die volume cause a shift to the right?

For the reaction $2N_2O_5 \to 4NO_2 + O_2$, rate and rate constant are $1.02 \times 10^{-4}$ mol $lir^{-1}$ $sec^{-1}$ and $3.4 \times 10^{-5}$ $sec^{-1}$ respectively then concentration of $N_2O_5$ at that time will be

1 -Propanol and 2-propanol can be distinguished by

What is $Z$ in the following sequence of reactions? $\text{Phenol}\xrightarrow[\text{dust}]{Zn} X \xrightarrow[{\text{Anhyd}}.AlCl_3]{CH_3Cl} Y \xrightarrow[KMnO_4]{\text{Alkaline}}Z$

The value of Planck's constant $(h)$ is $6.63 \times 10^{-34} Js$. The velocity of light is $3.0 \times 10^{8} ms ^{-1}$. Which value is closest to the wavelength (in meters) of a quantum of light with frequency of $8 \times 10^{15} s ^{-1}$ ?

The emf of a particular voltaic cell with the cell reaction $Hg_{2}^{2+}+H_{2} {\rightleftharpoons} 2Hg+2H^{+}$ is 0.65 V. The maximum electrical work of this cell when 0.5 g of $H_{2}$ is consumed.

A certain reaction is non spontaneous at 298K. The entropy change during the reaction is 121 $JK^{-1}.$ Is the reaction is endothermic or exothermic ? The minimum value of $\Delta$H for the reaction is

A compound $M_{p} X_{q}$ has cubic close packing (ccp) arrangement of X. Its unit cell structure is shown below. The empirical formula of the compound is

A mixture of benzaldehyde and formaldehyde on heating with aqueous NaOH solution gives

If �a� stands for the edge length of the cubic systems : simple cubic, body centred cubic and face centred cubic, then the ratio of radii of the spheres in these systems will be respectively,

Which one of the following statements is not true regarding (+) Lactose ?

Which group contains coloured ions out of 1. $Cu^{2+}$ 2.$Ti^{4+}$ 3. $Co^{2+}$ 4. $Fe^{2+}$

What is X?