List of top Questions asked in JKCET

Anti-Markownikoff addition of $HBr$ is not observed in
Among the following, which is the least stable conformation of cyclohexane?
Which of the following is a semiconductor?
A conducting rod of length $L$ is moving in a uniform magnetic field $(B) $ with a velocity $v$ without rotation. The velocity of the rod is perpendicular to the rod, and the motion of the rod is confined to a plane perpendicular to the magnetic field. What is the induced emf developed across the rod?
Three coplanar, parallel, long straight wires are equally spaced, that is, the distance between each pair of successive wires is the same. The first and the third wire carry currents of $1\,A$ each, in the same direction. What must be the current in the second wire (wire in the middle), so that the other two wires do not feel any net force?
Tollen's test can be used to distinguish
Anode reaction of a fuel cell is
What happens when blood cells are placed in pure water?
Magnitude of drift velocity per unit electric field is
The value of $ \sum\limits_{n=0}^{\infty }{\frac{{{n}^{2}}+4}{n\,!}} $ is equal to
The equation of the plane perpendicular to the $z$-axis and passing through $ (2,-3,5) $ is
If $ {{4}^{x}}={{16}^{y}}={{64}^{z}}, $ then
If $A$ is a square matrix of order $3$ and a is a real number, then determinant $ |\alpha \,\,\,A| $ is equal to
The number of straight lines which can be drawn through the point $ (-2,\,\,\,2) $ so that its distance from $ (-3,\,\,1) $ will be equal $6$ units is
The contrapositive statement of the proposition $ p\to \sim q $ is
The ratio in which ZX-plane divides the line segment AB joining the points $ A(4,2,3) $ and $ B(-2,4,5) $ is equal to
The value of the integral $ \int{\frac{1}{{{e}^{2x}}+{{e}^{-2x}}}}\,\,dx $ is equal to
A force $2$ units acts along the line $ x-4=y-5. $ The moment of the force about the point $ (1,\,\,1) $ along $Z-axis$ is equal to
The value of $k$ for which the equation $ {{x}^{2}}-4xy-{{y}^{2}}+6x+2y+k=0 $ represents a pair of straight lines is
The three distinct points $ A(at_{1}^{2},\,2a{{t}_{1}}),\,\,B(at_{2}^{2},\,\,2a{{t}_{2}}) $ and $ C(0,\,a) $ (where $a$ is a real number) are collinear, if
If $ f(x)\,=kx\,-\,\cos \,x $ is monotonically increasing for all $ x\in R, $ then
Which one among the following is most reactive towards electrophilic substitution reaction?
When 'blue vitriol' is heated at $373 \,K$, the product formed is
What fraction of the surface area of earth can be covered to establish communication by one geostationary statellite?
In a volumetric experiment, it was found that a solution of $KMnO _{4}$ is reduced to $MnSO _{4}$. If the normality of the solution is $1.0\, N$, then the molarity of the solution will be