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JEEMAIN and NEET
JEEMAIN and NEET
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JEEMAIN PAST PAPERS
(Crystal Field Theory) Consider the complex ion $[Mn(OH_2)_6]^{2+}$ with 5 unpaired electrons. Which response includes all the following statements that are true, and no false statements?
jeemain
chemistry
class12
coordination-compounds
unit9
q68
difficult
asked
Feb 3, 2014
by
sreemathi.v
1
answer
(Crystal Field Theory) How many unpaired electrons are there in a strong field iron(II) octahedral complex?
jeemain
chemistry
class12
coordination-compounds
unit9
q67
difficult
asked
Feb 3, 2014
by
sreemathi.v
1
answer
Find the solution of differential equation : $\large\frac{dy}{dx}=\frac{x^2+y^2}{xy}$
jeemain
math
class12
ch9
differential-equations
homogeneous-differential-equations
q18
easy
asked
Feb 3, 2014
by
meena.p
1
answer
(Crystal Field Theory) When the valence d orbitals of the central metal ion are split in energy in an octahedral ligand field, which orbitals are raised least in energy?
jeemain
chemistry
class12
coordination-compounds
unit9
q66
difficult
asked
Feb 3, 2014
by
sreemathi.v
1
answer
(Crystal Field Theory) Which one of the following statements is FALSE?
jeemain
chemistry
class12
coordination-compounds
unit9
q65
difficult
asked
Feb 3, 2014
by
sreemathi.v
1
answer
The coordination complex, $[Cu(OH_2)_6]^{2+}$ has one unpaired electron. Which of the following statements are true?
jeemain
chemistry
class12
coordination-compounds
unit9
q64
difficult
asked
Feb 3, 2014
by
sreemathi.v
1
answer
Two isolated charged conducting spheres of radii a and b produce the same electric field near their surfaces . The ratio of electric potential on their surfaces is
jeemain
physics
class12
ch2
electrostatics
electrostatic-potential-and-capacitance
electrostatics-of-conductors
easy
asked
Feb 3, 2014
by
yamini.v
1
answer
Let $g(n) $ is a continuous differential function which takes positive value for $ x \leq 0$ and satisfy $\int \limits_0^2 g(t) dt = x \sqrt {g(x)} $ with $f(1) =V_2$. find the value of $f(\sqrt 2 +1)$
jeemain
math
class12
ch9
differential-equations
homogeneous-differential-equations
q17
difficult
asked
Feb 3, 2014
by
meena.p
1
answer
In which one of the following species does the transition metal ion have $d^3$ electronic configuration?
jeemain
chemistry
class12
coordination-compounds
unit9
q63
difficult
asked
Feb 3, 2014
by
sreemathi.v
1
answer
A molecule that cannot be superimposed on its mirror image is said to exhibit which of the following?
jeemain
chemistry
class12
coordination-compounds
unit9
q62
difficult
asked
Feb 3, 2014
by
sreemathi.v
1
answer
Given $y(0) =2000$ and $\large\frac{dy}{dx} =3200-20y^2$ then find the value of $\displaystyle\lim _{x \to \infty} y(n)$
jeemain
math
class12
ch9
differential-equations
formation-of-differential-equations
q16
difficult
asked
Feb 3, 2014
by
meena.p
1
answer
Three concentric conducting spherical shells carry charges +4Q on the inner shell , -2Q on the middle shell and +6Q on the outer shell . The charge on the inner surface of outer shell is
jeemain
physics
class12
ch1
electrostatics
electric-charges-and-fields
electric-charge
easy
asked
Feb 3, 2014
by
yamini.v
1
answer
General solution of differential equation : $ (1-x^2)(1-y)dx -xy (1+y) dy=0$
jeemain
math
class12
ch9
differential-equations
solving-using-separation-of-variables
q15
medium
asked
Feb 3, 2014
by
meena.p
1
answer
Which one of the following complexes can exhibit geometrical isomerism?
jeemain
chemistry
class12
coordination-compounds
unit9
q61
difficult
asked
Feb 3, 2014
by
sreemathi.v
1
answer
(Valance Bond Theory) Magnetic measurements indicate that $ [Co(OH_2)_6]^{2+}$ has 3 unpaired electrons. Therefore, the hybridization of the metal's orbitals in $[Co(OH_2)_6]^{2+}$ is :
jeemain
chemistry
class12
coordination-compounds
unit9
q60
difficult
asked
Feb 3, 2014
by
sreemathi.v
1
answer
Solve: $xe^y dy -e^y dx=0$
jeemain
math
class12
ch9
differential-equations
ordinary-differential-equations
q14
easy
asked
Feb 3, 2014
by
meena.p
1
answer
General solution of differential equation : $x^2e^y dy - (x-1) e^x dx=0$
jeemain
math
class12
ch9
differential-equations
solving-using-separation-of-variables
q13
difficult
asked
Feb 3, 2014
by
meena.p
1
answer
What is the oxidation number of the central metal atom in the coordination compound $[Pt(NH_3)_3Cl]Cl?$
jeemain
chemistry
class12
coordination-compounds
unit9
q59
difficult
asked
Feb 3, 2014
by
sreemathi.v
1
answer
Which name-formula combination is NOT correct?
jeemain
chemistry
class12
coordination-compounds
unit9
q58
difficult
asked
Feb 3, 2014
by
sreemathi.v
1
answer
General solution of differential equation $x dy -y dx=0$
jeemain
math
class12
ch9
differential-equations
solving-using-separation-of-variables
q12
easy
asked
Feb 3, 2014
by
meena.p
1
answer
Select the correct IUPAC name for: $[Co(NH_3)_6]^{2+}$
jeemain
chemistry
class12
coordination-compounds
unit9
q57
difficult
asked
Feb 3, 2014
by
sreemathi.v
1
answer
The electric field in a region is given by $\;\overrightarrow{E}=\alpha \hat{i}+\beta \hat{j}\;.$ Here $\;\alpha\; and \; \beta\;$ are constants . The net flux through a square are of side l parallel to y - z plane
jeemain
physics
class12
ch1
electrostatics
electric-charges-and-fields
electric-flux-and-dipole
easy
asked
Feb 3, 2014
by
yamini.v
1
answer
General solution of differential equation : $x dy +y dx=0$
jeemain
math
class12
ch9
differential-equations
solving-using-separation-of-variables
q11
easy
asked
Feb 3, 2014
by
meena.p
1
answer
Select the correct IUPAC name for: $[FeF_4(OH_2)_2]^-$
jeemain
chemistry
class12
coordination-compounds
unit9
q56
difficult
asked
Feb 3, 2014
by
sreemathi.v
1
answer
Given the list of ligands and their corresponding names, choose the pair that disagree.
jeemain
chemistry
class12
coordination-compounds
unit9
q55
difficult
asked
Feb 3, 2014
by
sreemathi.v
1
answer
Consider the coordination compound,$K_2[Cu(CN)_4]$.A coordinate covalent bond exists between
jeemain
chemistry
class12
coordination-compounds
unit9
q54
difficult
asked
Feb 3, 2014
by
sreemathi.v
1
answer
ABC is an equilateral triangle of each side 5 cm . Two charges of $\;\pm\large\frac{50}{3}\times10^{-3}\;\mu C\;$ are placed at B and A respectively . Find the magnitude of resultant field at C .
jeemain
physics
class12
ch1
electrostatics
electric-charges-and-fields
electric-field
easy
asked
Feb 3, 2014
by
yamini.v
1
answer
Consider the coordination compound,$Na_2[Pt(CN)_4]$.The Lewis acid is
jeemain
chemistry
class12
coordination-compounds
unit9
q53
difficult
asked
Feb 3, 2014
by
sreemathi.v
1
answer
In coordination chemistry, the donor atom of a ligand is
jeemain
chemistry
class12
coordination-compounds
unit9
q52
difficult
asked
Feb 3, 2014
by
sreemathi.v
1
answer
The ________ sphere is enclosed in brackets in formulas for complex species, and it includes the central metal ion plus the coordinated groups.
jeemain
chemistry
class12
coordination-compounds
unit9
q51
difficult
asked
Feb 3, 2014
by
sreemathi.v
1
answer
Two point charges of 5C and 20C are separated by a distance of 6m . Find the point on the line joining them at which electric field intessity is zero .
jeemain
physics
class12
ch1
electrostatics
electric-charges-and-fields
electric-field
easy
asked
Feb 3, 2014
by
yamini.v
1
answer
One mole of the complex compound $CO(NH_3)_5Cl_3$ gives 3 moles of ions on dissolution in water.On a mole of the same complex reacts with 2 moles of $AgNO_3$ solution to yield 2 moles of $AgCl(s)$.The structure of complex is
jeemain
chemistry
class12
coordination-compounds
unit9
q50
medium
sec-c
asked
Feb 3, 2014
by
sreemathi.v
1
answer
Coordination compound have great importance in biological system .In this content which of the following statement is incorrect
jeemain
chemistry
class12
coordination-compounds
unit9
q49
medium
asked
Feb 3, 2014
by
sreemathi.v
1
answer
The coordination number of central metal atom in a complex is determined by
jeemain
chemistry
class12
coordination-compounds
unit9
q48
medium
asked
Feb 3, 2014
by
sreemathi.v
1
answer
$[Cr(H_2O)_5Cl]SO_4$ and $[Cr(H_2O)_5SO_4]Cl$ are
jeemain
chemistry
class12
coordination-compounds
unit9
q47
medium
asked
Feb 3, 2014
by
sreemathi.v
1
answer
2 separate reservation of oil A and B (capacity of $A=2 \times $ capacity of B) are filled completely with oil and oil is released simultaneously from both the reservoirs. The rate of flow of oil out of each reservoir at an instant of time is proportional to the quantity of oil in the reservoir at that time one hour after the oil is released the quantity of oil in reservoir A is 1.5 times the quantity of oil in reservoir B. If the reservoirs have same quantity of oil after $t= \large\frac{\log a}{\log b -\log c}$ then $a+b-c$
jeemain
math
class12
ch9
differential-equations
solving-using-separation-of-variables
q10
difficult
asked
Feb 3, 2014
by
meena.p
1
answer
Which of the following is true for the complexes $[Ni(CN)_4]^{2-}$ and $[NiCl_4]^{2-}$
jeemain
chemistry
class12
coordination-compounds
unit9
q46
medium
asked
Feb 3, 2014
by
sreemathi.v
1
answer
Which of the following facts about the complex $[Cr(NH_3)_6]Cl_3$ is wrong
jeemain
chemistry
class12
coordination-compounds
unit9
q45
medium
asked
Feb 3, 2014
by
sreemathi.v
1
answer
General solution of differential equations: $e^y dx+(xe^y-2y)dy=0$
jeemain
math
class12
ch9
differential-equations
solving-using-separation-of-variables
q9
medium
asked
Feb 3, 2014
by
meena.p
1
answer
Which one of the following has an optical isomer
jeemain
chemistry
class12
coordination-compounds
unit9
q44
sec-a
medium
asked
Feb 3, 2014
by
sreemathi.v
1
answer
If the electric flux entering and leaving an enclosed surface is $\phi_{1}\;and\;\phi_{2}\;.$ The charge inside the surface will be
jeemain
physics
class12
ch1
electrostatics
electric-charges-and-fields
gausss-law
easy
asked
Feb 3, 2014
by
yamini.v
1
answer
General solution of differential equation: $\large\frac{xdy}{x^2+y^2} $$+\bigg(1- \large\frac{y}{x^2+y^2} \bigg)$$dx=0$ is
jeemain
math
class12
ch9
differential-equations
solving-using-separation-of-variables
q8
difficult
asked
Feb 3, 2014
by
meena.p
1
answer
Which of the following pairs represents linkage isomers :
jeemain
chemistry
class12
coordination-compounds
unit9
q43
medium
asked
Feb 3, 2014
by
sreemathi.v
1
answer
Which of the following has an optical isomer
jeemain
chemistry
class12
coordination-compounds
unit9
q42
medium
asked
Feb 3, 2014
by
sreemathi.v
1
answer
In which of the following octahedral complexes of CO(at.no=27),will be magnitude of $\Delta_0$ be the highest
jeemain
chemistry
class12
coordination-compounds
unit9
q41
medium
asked
Feb 3, 2014
by
sreemathi.v
1
answer
General solution of $(2x^3-xy^2)dx+(2y^3-x^2y)dy=0$ is
jeemain
math
class12
ch9
differential-equations
ordinary-differential-equations
q7
difficult
asked
Feb 3, 2014
by
meena.p
1
answer
The coordination number and the oxidation state of the element 'E' in the complex $[E(en)_2(C_2O_4)]NO_2$ when 'en' is ethylenediamine
jeemain
chemistry
class12
coordination-compounds
unit9
q40
medium
asked
Feb 3, 2014
by
sreemathi.v
1
answer
Identify the correct order of solubility of $Na_2S, CuS$ and $ZnS$ in aqueous solution
jeemain
chemistry
practical-chemistry
medium
asked
Feb 1, 2014
by
mosymeow_1
1
answer
The reagent $NH_4Cl$ and aqueous $NH_3$ will precipitate
jeemain
chemistry
practical-chemistry
medium
asked
Feb 1, 2014
by
mosymeow_1
1
answer
Potassium ferrocyanide is used in the detection of
jeemain
chemistry
practical-chemistry
medium
asked
Feb 1, 2014
by
mosymeow_1
1
answer
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