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JKCET 2018
List of top Questions asked in JKCET- 2018
The resistance of the platinum wire of a platinum resistance thermometer at the ice point is $ 5\,\Omega $ and at steam point is $ 5.23\,\Omega $ . When the thermometer is inserted in a hot bath, the resistance of the platinum wire will be $ 5.795\,\Omega $ . Calculate the temperature of the bath.
JKCET - 2018
JKCET
Physics
Current electricity
Calculate the molarity of a solution of
$ 30\,g $
of
$ Co(NO_3)_2.6H_2O $
in
$ 4.3\, L $
of solution ? Consider atomic mass of
$ Co = 59\, u $
,
$ N = 14\, u $
,
$ O = 16\,u $
,
$ H = 1\,u $
JKCET - 2018
JKCET
Chemistry
Some basic concepts of chemistry
The device or substances which do not obey Ohm?s law is/are
JKCET - 2018
JKCET
Physics
Current electricity
What is the hybridization and geometry of the compound
$ XeOF_4 $
?
JKCET - 2018
JKCET
Chemistry
Chemical bonding and molecular structure
What will be the
$ E_{cell} $
for the given cell ?
$ Zn\left|Zn^{2+}\left(0.1\,M\right)\right|\left|Cu^{2+}\left(0.01\,M\right)\right|Cu $
Given :
$ E^{\circ}_{Zn^{2+}Zn}=0.76\,V $
and
$ E^{\circ}_{Cu^{2+}Cu}=0.34\,V $
. Also predict whether the reaction is spontaneous or non-spontaneous.
JKCET - 2018
JKCET
Chemistry
Electrochemistry
For a copper block, find the electric field which can give on an average
$ 1 \,eV $
energy to a conduction electron. (The mean free path of conduction electrons in copper is given as
$ 4 \times 10^{-8}\, m $
)
JKCET - 2018
JKCET
Physics
Current electricity
The minimum negative potential given to anode plate at which photoelectric current becomes zero is called
JKCET - 2018
JKCET
Biology
Photorespiration
Identify the correct increasing order of crystal field stabilization energy value for the given complexes.
JKCET - 2018
JKCET
Chemistry
coordination compounds
How many geometrical isomers are possible with complexes of the type
$ [M(ab)_3] $
?
JKCET - 2018
JKCET
Chemistry
coordination compounds
Dispersion without deviation is produced by two thin (small angled) prisms which are combined together. One prism has angle
$ 5^{\circ} $
and refractive index
$ 1.56 $
. If the other prism has refractive index
$ 1.7 $
, what is its angle ?
JKCET - 2018
JKCET
Physics
Ray optics and optical instruments
Which of the following is the correct configuration of the complex
$ [RhCl_6]^{3-} $
?
JKCET - 2018
JKCET
Chemistry
coordination compounds
What will be the correct decreasing order of acid strength of the hydroxybenzoic acids? (Symbols and notations carry their usual meanings)
JKCET - 2018
JKCET
Chemistry
Aldehydes, Ketones and Carboxylic Acids
What will be the products when benzaldehyde is treated with
$ NaOD $
in
$ D_2O $
?
JKCET - 2018
JKCET
Chemistry
Aldehydes, Ketones and Carboxylic Acids
A bicyclist comes to a skidding stop in
$10\, m$
. During this process, the force on the bicycle due to the road is
$200\, N$
and is directly opposed to the motion. The work done by the cycle on the road is
JKCET - 2018
JKCET
Physics
work, energy and power
Due to atmospheric refraction effects, the day becomes longer by
JKCET - 2018
JKCET
Physics
Ray optics and optical instruments
A ball is thrown horizontally from a height of
$ 100\, m $
with an initial speed of
$ 15\,m \,s^{-1} $
. How far does it travel horizontally in the first
$ 2 $
seconds ?
JKCET - 2018
JKCET
Physics
Motion in a plane
Which wave, or ray is produced due to decelerating or accelerating charged particles ?
JKCET - 2018
JKCET
Physics
Electromagnetic waves
What will be the half-cell potential of a hydrogen electrode acting as an anode and dipped in a solution of
$ pH = 2 $
?
JKCET - 2018
JKCET
Chemistry
Electrochemistry
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