List of top Chemistry Questions asked in KCET

The reaction quotient '$Q$' is useful in predicting the direction of the reaction. Which of the following is incorrect ?

The equilibrium constant for the reaction $N _{2( g )}+ O _{2( g )} \rightleftharpoons 2 NO _{( g )}$ is $4 \times 10^{-4}$ at $2000\,K$. In presence of a catalyst the equilibrium is attained ten times faster. Therefore the equilibrium constant in presence of catalyst of $2000\, K$ is

Pick the correct statement among the following:

The monomer used in Novolac, a polymer used in paints

Galbriel phthalimide synthesis is used in the preparation of primary amine from phthalimide, which of the following reagent is not used during the process ?

Extraction of chlorine from brine solution is based on

Electrophile that participates in nitration of benzene is

Osmotic pressure can be increased by

Which of the following compound is most acidic ?

Equilibrium constants $K_1$, and $K_2$ for the following equilibria I. $NO _{( g )}+\frac{1}{2} O _{2( g )} \rightleftharpoons NO _{2( g )}$ II. $2 NO _{2( g )} \rightleftharpoons 2 NO _{( g )}+ O _{2( g )}$ are related as :

The half-life period of a order reaction is 60 minutes What percentage will be left over after 240 minutes ?

As per $IUPAC$ norms, the name of the complex $[Co(en)_2(ONO)Cl]Cl$ is

The shape of $XeF_6$ is,

An organic compound X is oxidised by using acidified $K_2Cr_2O_7$ solution. The product obtained reacts with phenyl hydrazine but does not answer silver mirror test. The compound X is,

$CO$ is a stronger ligand than $Cl^-$ because

Which of the following is incorrect in a galvanic cell ?

The hottest region of Bunsen flame shown in the figure below is :

Van-Arkel method of refining Zirconium involves,

The hybridisation of $C$ in diamond, graphite and ethyne is in the order

The increasing order of bond order of $O_2, O_2^+ , O_2^-$ and $O_2^{-}$ is

The contribution of particle at the edge centre to a particular unit cell is.

Predict the product $C$ in the following series of reactions : $CH _{3}- COOH \stackrel{ PCl _{ 5 }}{\longrightarrow} A { ->[{C_6H_6}][{{\text{Anhyd}} . Alcl_3}] } B { ->[CH_3MgBr] C}$

The composition of ?copper matte? is,

The complex formed when $Al_2O_3$ is leached from Bauxite using concentrated NaOH solution is,