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VITEEE
List of top Questions asked in VITEEE
In benzene, the triple bond consists of
VITEEE - 2015
VITEEE
Chemistry
Properties of benzene
An electron of mass
$9.0 \times 10^{-31} kg$
under the action of a magnetic field moves in a circle of radius
$2\, cm$
at a speed of
$3 \times 10^6 \, m/s$
. If a proton of mass
$1.8 \times 10^{27} \, kg$
was to move in a circle of same radius in the same magnetic field, then its speed will become
VITEEE - 2015
VITEEE
Physics
Magnetic Force
If the ionisation energy and electron affinity of an element are $275$ and $86 \,kcal\, mol^{-1}$ respectively, then the electronegativity of the element on the Mulliken scale is
VITEEE - 2015
VITEEE
Chemistry
Some basic concepts of chemistry
Caffeine has a molecular weight of
$194\, u$
. If it contains
$28.9\%$
by mass of nitrogen, number of atom of nitrogen in one molecule of caffeine is
VITEEE - 2015
VITEEE
Chemistry
Some basic concepts of chemistry
A galvanometer with a scale divided into
$100$
equal divisions has a current sensitivity of
$10$
divisions per milliampere and a voltage sensitivity of
$2$
divisions per millivolt. The galvanometer resistance will be
VITEEE - 2015
VITEEE
Physics
Electrical Instruments
A current of
$2\,A$
is flowing in the sides of an equilateral triangle of side
$9\, cm$
. The magnetic field at the centroid of the triangle is
VITEEE - 2015
VITEEE
Physics
Magnetic Field Due To A Current Element, Biot-Savart Law
$X Cl _{2}( excess )+Y Cl _{2} X Cl _{4}+Y \downarrow$
$Y O {->[{\Delta}][{>400^{\circ} C }]} \frac{1}{2} O _{2}+Y$
Ore of Y would be ,
VITEEE - 2015
VITEEE
Chemistry
Chlorine
With excess of water, both $P_{2}O_{5}$ and $PCl_{5}$ give
VITEEE - 2015
VITEEE
Chemistry
Group 15 Elements
Which one of the following is a case of negative adsorption?
VITEEE - 2015
VITEEE
Chemistry
Adsorption
Which of the following reactions is used to prepare isobutane ?
VITEEE - 2015
VITEEE
Chemistry
Chemical Reactions
Two points masses,
$m$
each carrying charges
$-q$
and
$+q$
are attached to the ends of a mass less rigid non-conducting wire of length
$'L'$
. When this arrangement is placed in a uniform electric field, then it deflects through an angle
$i$
. The minimum time needed by rod to align itself along the field is
VITEEE - 2015
VITEEE
Physics
Electric Dipole
Two sources of equal emf are connected to a resistance
$R$
. The internal resistance of these sources are
$r_1$
and
$r_2 (r_1 > r_2 )$
. If the potential difference across the source having internal resistance
$r_2$
is zero, then
VITEEE - 2015
VITEEE
Physics
Magnetic Field
The masses of three copper wires are in the ratio
$2 : 3 : 5$
and their lengths are in the ratio
$5 : 3 : 2$
.Then, the ratio of their electrical resistances is
VITEEE - 2015
VITEEE
Physics
Resistance
Point out incorrect stability order
VITEEE - 2015
VITEEE
Chemistry
Isomerism
The chemical composition of slag formed during the smelting process in the extraction of copper is
VITEEE - 2015
VITEEE
Chemistry
Refining
In a potentiometer experiment, the balancing length of a cell is
$560\, cm$
. When an external resistance of
$10 \, \Omega$
is connected in parallel to the cell, the balancing length changes by
$60 \,cm$
.The internal resistance of a cell is
VITEEE - 2015
VITEEE
Physics
Magnetic Field
The molarity of
$NO_3^-$
in the solution after
$2L$
of
$3M \, AgNO_3$
is mixed with
$3L$
of
$1M \, BaCl_2$
is
VITEEE - 2015
VITEEE
Chemistry
Expressing Concentration of Solutions
If line $y = 2\,x + c$ is a normal to the ellipse $\frac{x^2}{9} + \frac{y^2}{16} = 1 $, then
VITEEE - 2015
VITEEE
Mathematics
Ellipse
The minimum value of
$\frac{x}{\log \, x}$
is
VITEEE - 2014
VITEEE
Mathematics
Application of derivatives
Let
$f ' (x),$
be differentiable
$\forall \, x.$
If
$f (1) = -2$
and
$f '(x) \geq 2 \forall x \in [1, 6],$
then
VITEEE - 2014
VITEEE
Mathematics
Differentiability
Two lines
$ \frac{x-1}{2} = \frac{y+1}{3} = \frac{z -1}{4}$
and
$ \frac{x-3}{1} = \frac{y-k}{2} = z $
intersect at a point, if
$k$
is equal to
VITEEE - 2014
VITEEE
Mathematics
Three Dimensional Geometry
If the points
$(1, 2, 3)$
and
$(2, -1, 0)$
lie on the opposite sides of the plane
$2x + 3y - 2z = k,$
then
VITEEE - 2014
VITEEE
Mathematics
Three Dimensional Geometry
If the system of equations
$x + ky - z = 0, 3x - ky - z = 0$
and
$x - 3y + z = 0$
, has non-zero solution, then
$k$
is equal to
VITEEE - 2014
VITEEE
Mathematics
Determinants
If there is an error of
$k\%$
in measuring the edge of a cube, then the percent error in estimating its volume is
VITEEE - 2014
VITEEE
Mathematics
Application of derivatives
If
$\Delta (x) \begin{vmatrix}1&\cos x&1 -\cos x\\ 1+ \sin x& \cos x &1+ \sin x - \cos x\\ \sin x &\sin x&1\end{vmatrix},$
then
$ \int\limits^{\pi / 4}_{0} \Delta\left(x\right)dx $
is equal to
VITEEE - 2014
VITEEE
Mathematics
Integrals of Some Particular Functions
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