List of top Chemistry Questions asked in KCET

Dead burnt plaster is

Gold sol is not a

The IUPAC name of $[Co(NH_3)_4 Cl(NO_2)]Cl$ is

The electronic configuration of transition element "X", is +3, oxidation state is $ {[Ar] 3d^5}$. What is its atomic number ?

Among the following, the branched chain polymer is

$[Fe(NO_2)_3 Cl_3]$ and $[Fe(O - NO)_3 \, Cl_3]$ shows

The reagent 'X' used for the following reaction is

The value of rate constant of a pseudo first order reaction

At a particular temperature, the ratio of molar conductance to specific conductance of 0.01 M NaCl solution is

Acidity of $BF_3$ can be explained on which of the following concepts ?

Which of the following aqueous solutions should have the highest boiling point ?

Very pure $N_2$ can be obtained by

Isotonic solutions are solutions having the same

The charge required for the reduction of $1$ mol of $MnO_4^-$ to $MnO_2$ is

$1.0 \, g$ of Mg is burnt with 0.28 g of $O_2$ in a closed vessel. Which reactant is left in excess and how much ?

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

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

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