JEE Main 2017 (Online) 8th April Morning Slot

The major product of the following reaction is :

A mixture containing the following four compounds is extracted with \(1M\) \(HCl.\) The compound that goes to aqueous layer is :

The IUPAC name of the following compound is :

Which of the following statements is not true about partition chromatography?

Among the following, the essential amino acid is :

Which of the following is paramagnetic ?

sp3d2 hybridization is not displayed by :

The rate of a reaction A doubles on increasing the temperature from 300 to 310 K. By how much, the temperature of reaction B should be Increased from 300 K so that rate doubles if activation energy of the reaction B is twice to that of reac...

The reason for “drug induced poisoning” is :

The major product expected from the following reaction is :

The pair of compounds having metals in their highest oxidation state is :

What is the standard reduction potential (Eo) for Fe3+ \(\to\) Fe ?
Given that :
Fe2+ + 2e\(-\) \(\to\) Fe; \(E_{F{e^{2 + }}/Fe}^o\) = \(-\)0.47 V
Fe3+ + e\(-\) \(\to\) Fe2+; \(E_{F{e^{3 + }}/F{e^{2 + }}}^o\) = +0.77 V

Consider the following standard electrode potentials (Eo in volts) in aqueous solution :

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Identify the pollutant gases largely responsible for the discoloured and
lustreless nature of marble of the Taj Mahal.

Among the following, the incorrect statement is :

Which of the following compounds will not undergo Friedel Craft’s reaction with benzene ?

The major product of the following reaction is :

The major product of the following reaction is :

In which of the following reactions, hydrogen peroxide acts as an oxidizing
agent ?

Additin of sodium hydroxide solution to a weak acid (HA)results in a buffer of pH 6. If ionition constant of HA is 10\(-\)5, the ratio of salt to acid concentration in the buffer solution will be :

A metal ‘M’ reacts with nitrogen gas to afford ‘M3N’. ‘M3N’ on heating at high temperature gives back ‘M’ and on
reaction with water produces a gas ‘B’. Gas ‘B’ reacts with aqueous
solution of CuSO4 to form a deep blue compound. ‘M’ and
‘...

The number of S = O and S − OH bonds present in peroxodisulphuric acid and pyrosulphuric acid respectively are :

Consider the following ionization enthalpies of two elements 'A' and 'B' .

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A solution containing a group-IV cation gives a precipitate on passing H2S. A solution of this precipitate in dil.HCl produces a white precipitate with NaOH solution and bluish-white precipitate with basic potassium ferrocyanide. The cation...

5 g of Na2SO4 was dissolved in x g of H2O. The change in freezing point was found to be
3.82oC. If Na2SO4 is 81.5% ionised,
the value of x
(Kf for water=1.86oC kg mol−1) is approximately :
(molar mass of S = 32 g mol−1 and that of Na = ...

Excess of NaOH (aq) was added to 100 mL of FeCl3 (aq) resulting into 2.14 g of Fe(OH)3 . The molarity of FeCl3 (aq) is :
(Given molar mass of Fe = 56 g mol−1 and molar mass of Cl = 35.5 g mol−1)

If the shortest wavelength in Lyman series of hydrogen atom is A, then the longest wavelength in Paschen series of He+ is :

Among the following, correct statement is :

The enthalpy change on freezing of 1 mol of water at 5oC to ice at −5oC is :
(Given \(\Delta\)fusH = 6 kJ mol\(-\)1 at 0oC,
Cp(H2O, \(\ell\) = 75.3J mol\(-\)1 K\(-\)1)
Cp(H2O s) =36.8 J mol\(-\)1 K\(-\)1)

For a reaction, A(g) \(\to\) A(\(\ell\)); \(\Delta\)H= \(-\) 3RT.
The correct statement for the reaction is :

The coordinates of the foot of the perpendicular from the point (1, \(-\)2, 1) on the plane containing the lines, \({{x + 1} \over 6} = {{y - 1} \over 7} = {{z - 3} \over 8}\) and $${{x - 1} \over 3} = {{y - 2} \over 5} = {{z - 3} \over 7},...

The line of intersection of the planes \(\overrightarrow r .\left( {3\widehat i - \widehat j + \widehat k} \right) = 1\,\,\) and
\(\overrightarrow r .\left( {\widehat i + 4\widehat j - 2\widehat k} \right) = 2,\) is :

The tangent at the point (2, \(-\)2) to the curve, x2y2 \(-\) 2x = 4(1 \(-\) y) does not pass through the point :

The area (in sq. units) of the smaller portion enclosed between the curves, x2 + y2 = 4 and y2 = 3x, is :

If (27)999 is divided by 7, then the remainder is :

If two parallel chords of a circle, having diameter 4units, lie on the opposite sides of the center and subtend angles \({\cos ^{ - 1}}\left( {{1 \over 7}} \right)\) and sec\(-\)1 (7) at the center respectivey, then the distance between the...

If a point P has co-ordinates (0, \(-\)2) and Q is any point on the circle, x2 + y2 \(-\) 5x \(-\) y + 5 = 0, then the maximum value of (PQ)2 is :

Let z\(\in\)C, the set of complex numbers. Then the equation, 2|z + 3i| \(-\) |z \(-\) i| = 0 represents :

The integral \(\int_{{\pi \over {12}}}^{{\pi \over 4}} {\,\,{{8\cos 2x} \over {{{\left( {\tan x + \cot x} \right)}^3}}}} \,dx\) equals :

The curve satisfying the differential equation, ydx \(-\)(x + 3y2)dy = 0 and passing through the point (1, 1), also passes through the point :

If y = \({\left[ {x + \sqrt {{x^2} - 1} } \right]^{15}} + {\left[ {x - \sqrt {{x^2} - 1} } \right]^{15}},\)
then (x2 \(-\) 1) \({{{d^2}y} \over {d{x^2}}} + x{{dy} \over {dx}}\) is equal to :

Consider an ellipse, whose center is at the origin and its major axis is along the x-axis. If its eccentricity is \({3 \over 5}\) and the distance between its foci is 6, then the area (in sq. units) of the quadrilatateral inscribed in the e...

Let f(x) = 210.x + 1 and g(x)=310.x \(-\) 1. If (fog) (x) = x, then x is equal to :

The locus of the point of intersection of the straight lines,
tx \(-\) 2y \(-\) 3t = 0
x \(-\) 2ty + 3 = 0 (t \(\in\) R), is :

The integral
\(\int {\sqrt {1 + 2\cot x(\cos ecx + \cot x)\,} \,\,dx}\)
\(\left( {0 < x < {\pi \over 2}} \right)\) is equal to :
(where C is a constant of integration)

The value of tan-1 \(\left[ {{{\sqrt {1 + {x^2}} + \sqrt {1 - {x^2}} } \over {\sqrt {1 + {x^2}} - \sqrt {1 - {x^2}} }}} \right],\) \(\left| x \right| < {1 \over 2},x \ne 0,\) is equal to :

\(\mathop {\lim }\limits_{x \to 3}\) \({{\sqrt {3x} - 3} \over {\sqrt {2x - 4} - \sqrt 2 }}\) is equal to :

The proposition \(\left( { \sim p} \right) \vee \left( {p \wedge \sim q} \right)\) is equivalent to :

Let A be any 3 \(\times\) 3 invertible matrix. Then which one of the following is not always true ?

If
\(S = \left\{ {x \in \left[ {0,2\pi } \right]:\left| {\matrix{ 0 & {\cos x} & { - \sin x} \cr {\sin x} & 0 & {\cos x} \cr {\cos x} & {\sin x} & 0 \cr } } \right| = 0} \right\},\)
then $$\sum\limits_{x \in S} {\tan \left...