List of top Questions asked in KCET

The rate at which a substance reacts depends on its
A unit vector perpendicular to the plane containing the vectors $\hat {i}-\hat {j}+\hat{k} $ and $ -\hat{i}+\hat {j}+\hat{k}$ is
The contrapositive of the inverse of $p \to \sim q$ is
If a liquid does not wet glass, its angle of contact is
A buffer solution has equal volumes of $0.2M \, NH_4OH$ and $0.02\, M \, NH_4 Cl$. The $p^{kb}$ of the base is $5$. The $pH$ is
Alum is a water purifier because it
Ethyl chloride on heating with $AgCN$, forms a compound $'X'$ . The functional isomer of $'X'$ is -
Which of the following pairs of elements cannot form an alloy ?
If the potential difference across the internal resistance $r_1$ is equal to the emf $E$ of the battery, then
Which of these does not influence the rate of reaction?
Which compound is zero valent metal complex ?
Four metal conductors having different shapes a) a sphere b) cylindrical c) pear d) Lightening conductor are mounted on insulating stands and charged. The one which is best suited to retain the charge for a longer time is
By using only two resistance coils-singly, in series, or in Parallel-one should be able to obtain resistances of $3, 4, 12$ and $16$ ohms. The separate resistances of the coil are
The magnitude of $I$ in ampere unit is
Sucrose molecule is made up of
Out of the following four dimensional quantities, which one qualifies to be called a dimensional constant ?
The site of EMP pathway of breakdown of glucose in a cell, is
The pyramid of energy is always upright for any ecosystem. The situation indicates the fact that............
$15 $ moles of $H_2$ and $5.2$ moles of $I_2$ are mixed and allowed to attain equilibrium at $500^\circ$C. At equilibrium, the concentration of $HI$ is found to be $10$ moles. The equilibrium constant for the formation of $HI$ is
The induction coil works on the principle of
The wavelength of the radiation emitted by a body depends upon
Which mirror is to be used to obtain a parallel beam of light from a small lamp?
When a body falls in air, the resistance of air depends to a great extent on the shape of the body. $3$ different shapes are given. Identify the combination of air resistances which truly represents the physical situation. (The cross sectional areas are the same)
1. Disc 2. Ball 3. cigar sheped
The cooling in refrigerator is due to
The electric flux for Gaussian surface A that enclose the charged particles in free space is (given $q_1= - 14\, nc, q_2 = 78.85\, nC, q_3 = - 56\, nC$)