List of top Questions asked in KCET

By passing electric current, \(NaClO_3\) is converted into \(NaClO_4\) according to the following equation \(Na ClO_3 + H_2 O \rightarrow NaClO_4 + H_2\) How many moles of \(NaClO_4\) will be formed when three Faradays of charge is passed through \(NaClO_3\) ?
Square planar complexes of the type $M_{ABXL}$ (where $A, B, X$ and $L$ are unidentate ligands) shows following set of isomers
The value of $cos^2 \, 45^{\circ} - sin^2 \, 15^{\circ}$ is
For a reaction $\frac{1}{2} A \to 2B$ rate of disappearance of $A$ is related to rate of appearance of $B$ by the expression
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
A body of mass $50\, kg$. is suspended using a spring balance inside a lift at rest. If the lift starts falling freely, the reading of the spring balance is
Replacement of which one of the following nucleotides in the Hbb gene causes sickle cell anaemia ?
Pick the correct statement among the following:
Two events $A$ and $B$ will be independent if
Three point charges of $+ 2q, + 2q$ and $- 4q$ are placed at the corners $A, B$ and $C$ of an equilateral triangle $ABC$ of side $'x'$. The magnitude of the electric dipole moment of this system is
The working of magnetic braking of trains is based on
The power dissipated in $3 \Omega$ resistance in the following circuit is
The monomer used in Novolac, a polymer used in paints
The minimum value of effective capacitance that can be obtained by combining $3$ capacitors of capacitances $1\, pF,\, 2\, pF$ and $4\, pF$ is
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
A jet plane of wing span $20\, m$ is travelling towards west at a speed of $400 \,{ms^{-1}}$. If the earth?s total magnetic field is $4 \times 10^{-4} T$ and the dip angle is $30^\circ$, at that place, the voltage difference developed across the ends of the wing is
The angle between velocity and acceleration of a particle describing uniform circular motion is
Potential difference between $A$ and $B$ in the following circuit
The codons UUU and UUC codes for phenylalanine only. This feature of genetic code is called
In a dithecous anther, each pollen sac contain 1000 MMC. What is the total number of pollen-grains produced by the anther ?
$CO$ is a stronger ligand than $Cl^-$ because
The differential coefficient of $\log_{10} x$ with respect to $\log_{x} 10$ is
Electrophile that participates in nitration of benzene is