List of top Questions asked in KCET

In acetylene molecule, between the carbon atoms there are
When conc. $H_2SO_4$ is heated with $P_2 O_5$, the acid is converted into
Hydroxyl ion concentration of $1M\, HCl$ is
Which one of the following is a second order reaction ?
A prism of a certain angle deviates the red and blue rays by $8^\circ$ and $12^\circ$ respectively. Another prism of the same angle deviates the red and blue rays by $10^\circ$ and $14^\circ$ respectively. The prisms are small angled and made of different materials. The dispersive powers of the materials of the prisms are in the ratio
Gram molecular volume of oxygen at $STP$ is
The number of unidentate ligands in the complex ion is called
Formation of coloured solution is possible when metal ion in the compound contains
The general formula of a cycloalkane is
The maximum height attained by a projectile when thrown at an angle $\theta $ with the horizontal is found to be half the horizontal range. Then $\theta $ =
The dimensional formula for impulse is
The ionization energy of $Li^{2+}$ is equal to
The de Broglie wavelength of a proton (charge = $1.6\times10^{-19}C$ mass = $1.6\times10^{-27} kg)$ accelerated through a p.d of $1\, kV$ is
Minority carriers in a $p-type$ semiconductor are
$x^2 + y^2 -6x-6y + 4 = 0, x^2 + y^2 - 2x - 4y + 3 - 0 , x^2 + y^2 + 2k x + 2y +1 = 0$. If the Radical centre of the above three circles exists, then which of the following cannot be the value of $k$ ?
How many chiral carbon atoms are present in $2,3,4$ - trichloropentane ?
Dalton's law of partial pressures is applicable to which one of the following systems ?
Mutation can not change
In the Wheatstone's network given below $P=10 \, \Omega$ $Q=20 \, \Omega$ $R=15 \, \Omega$ $S=30 \, \Omega$ The current passing through the battery (of negligible internal resistance) is
The surface temperature of the Sun which has maximum energy emission at $500 \,nm$ is $6000 \,K$. The temperature of a star which has maximum energy emission at $400\, nm$ will be
$Mg^{2+}$ is isoelectronic with
Which one of the following shows functional isomerism ?
Denatured alcohol is
In a reverse biased diode when the applied voltage changes by $1\, V$, the current is found to change by $0.5\, \mu\,A$ . The reverse bias resistance of the diode is
A single slit Fraunhoffer diffraction pattern is formed with white light. For what wavelength of light the third secondary maximum in the diffraction pattern coincides with the second secondary maximum in the pattern for red light of wavelength $6500 \, \mathring{A}$ ?