List of top Chemistry Questions asked in KCET

The temperature coefficient of a reaction is 2. When the temperature is increased from $30^{\circ} C$ to $90^{\circ}C$, the rate of reaction is increased by

Which of the following statements are collect? (i) NaH(s) reacts violently with water to form $NaOH$ and $H_2$ (ii) An example for electron rich hydride is $NH_3$ (iii) Nickel forms saline hydride

Phenol can be distinguished from ethanol by the reagent

Electrolytic refining is used to purify which of the following metals ?

For the reaction, $2SO_2 + O_2 <=> 2SO_3, $ the rate of disappearance of $O_2$ is $2 \times 10^{-4} \, mol \, L^{-1} \, s^{-1}$ . The rate of of appearance of $SO_3$ is

The relationship between $K_p$ and $K_c$ is $K_p=K_c (RT)^{\Delta n}$ What would be the value of $\Delta n$ for the reaction : $NH_4Cl_{(s)} <=> NH3_{(g)} +HCl_{(g)}$ ?

During the fusion of organic compound with sodium metal, nitrogen present in the organic compound is converted into

The common impurity present in bauxite is

Tertiary alkyl halide is practically inert to substitution by $S_N2$ mechanism because of

Snow blindness is caused due to

For a cell reaction involving two electron changes, ${E^{\circ}_{cell} = 0.3 \, V}$ at $ 25^{\circ} C$. The equilibrium constant of the reaction is

For an ideal gas, compressibility factor is

According to crystal field theory, the $M - L$ bond in a complex is

Plaster of Paris is represented as

If $3.01 \times 10^{20}$ molecules are removed from $98 \, mg$ of $H_2SO_4$, then number of moles of $H_2SO_4$ left are

The metal extracted by leaching with a cyanide is

$3ClO^{-}(aq) -> ClO^- + 2Cl^-$ is an example of

In which of the following, homolytic bond fission takes place ?

In which of the following, homolytic bond fission takes place ?

Pick up the incorrect statement from the following

Identify the correct statement in the following

A reaction has both $\Delta \,H$ and $\Delta \,S$ - ve The rate of reaction

Bactericidal antibiotics among the following is

Addition of mineral acid to an aqueous solution of Borax, the following compound is formed

Which of the following element forms $p_{\pi} - p_{\pi}$ bond with itself ?