The major product of the following reaction is :

The total number of isomers for a square planar complex [M(F)(Cl)(SCN)(NO2)] is

The decreasing order of ease of alkaline hydrolysis for the following esters in

The correct structure of product 'P' in the following reactions is :

The major product 'X' formed in the following reaction is :

The major product of the following reaction is

Which dicarboxylic acid in presence of a dehydrating agent is least reactive to give an anhydride?

Consider the given plots for a reaction obeying Arrhenius equation (0oC < T < 300oC) : (K and Ea are rate constant

Which of the graphs shown below does not represent the relationship between incident light and the electron ejected from

The increasing order of the pKa values of the following compounds is :

Which hydrogen in compound (E) is easily replaceable during bromination reaction in presence of light ?

The type of hybridisation and number of lone pair (s) of electrons of Xe in XeOF4, respectively, are:

Consider the following reduction processes : Zn2+ + 2e– $$ \to $$ Zn(s) ; Eo = – 0.76 V Ca2+ + 2e– $$ \to $$ Ca(s); Eo =

The major product formed in the reaction given below will be :

Liquids A and B form an ideal solution in the entire composition range. At 350 K, the vaapor pressures of pure A and pur

The effect of lanthanoid contraction in the lanthanoid series of elements by and large means :

Two pi and half sigma bonds are present in :

Wilkinson catalyst is : (Et = C2H5)

If dichloromethane (DCM) and water (H2O) are used for differential extraction, which one of the following statements is

The values of Kp/Kc for the following reactions at 300 K are, respectively : (At 300 K, RT = 24.62 dm3 atm mol–1) N2(g)

The electronegativity of aluminium is similar to :

A mixture of 100 m mol of Ca(OH)2 and 2 g of sodium sulphate was dissolved in water and the volume was made up to 100 mL

A process has $$\Delta $$H = 200 J mol–1 and $$\Delta $$S = 40 JK–1 mol–1. Out of the values given below, choose the min

If the system of equations x + y + z = 5 x + 2y + 3z = 9 x + 3y + az = $$\beta $$ has infinitely many solutions, then $$

The mean of five observations is 5 and their variance is 9.20. If three of the given five observations are 1, 3 and 8, t

Let n $$ \ge $$ 2 be a natural number and $$0 < \theta < {\pi \over 2}.$$ Then $$\int {{{{{\left( {{{\sin }^n}\t

Let $$\overrightarrow a = 2\widehat i + {\lambda _1}\widehat j + 3\widehat k,\,\,$$   $$\overrightarrow b =

In a class of 140 students numbered 1 to 140, all even numbered students opted Mathematics course, those whose number is

If 5, 5r, 5r2 are the lengths of the sides of a triangle, then r cannot be equal to :

For each t $$ \in $$ R , let [t] be the greatest integer less than or equal to t Then  $$\mathop {\lim }\limit

Let  $$f\left( x \right) = \left\{ {\matrix{ {\max \left\{ {\left| x \right|,{x^2}} \right\}} & {\left|

If the third term in the binomial expansion of $${\left( {1 + {x^{{{\log }_2}x}}} \right)^5}$$ equals 2560, then a possi

Let  d $$ \in $$ R, and  $$A = \left[ {\matrix{ { - 2} & {4 + d} & {\left( {\sin \theta } \rig

If the line 3x + 4y – 24 = 0 intersects the x-axis at the point A and the y-axis at the point B, then the incentre of th

The sum of all two digit positive numbers which when divided by 7 yield 2 or 5 as remainder is -

Consider the quadratic equation (c – 5)x2 – 2cx + (c – 4) = 0, c $$ \ne $$ 5. Let S be the set of all integral values of

If the area enclosed between the curves y = kx2 and x = ky2, (k > 0), is 1 square unit. Then k is -

A point P moves on the line 2x – 3y + 4 = 0. If Q(1, 4) and R (3, – 2) are fixed points, then the locus of the centroid

Let z1 and z2 be any two non-zero complex numbers such that   $$3\left| {{z_1}} \right| = 4\left| {{z_2}} \rig

Let  $${\rm I} = \int\limits_a^b {\left( {{x^4} - 2{x^2}} \right)} dx.$$  If I is minimum then the ordere

The shortest distance between the point  $$\left( {{3 \over 2},0} \right)$$   and the curve y = $$\s

If  $${{dy} \over {dx}} + {3 \over {{{\cos }^2}x}}y = {1 \over {{{\cos }^2}x}},\,\,x \in \left( {{{ - \pi } \over 3

Let f : R $$ \to $$ R be a function such that f(x) = x3 + x2f'(1) + xf''(2) + f'''(3), x $$ \in $$ R. Then f(2) equals

An unbiased coin is tossed. If the outcome is a head then a pair of unbiased dice is rolled and the sum of the numbers o

A solid metal cube of edge length 2 cm is moving in a positive y-direction at a constant speed of 6 m/s. There is a unif

A charge Q is distributed over three concentric spherical shells of radii a, b, c (a < b < c) such that their surf

If the magnetic field of a plane electromagnetic wave is given by (the speed of light = 3 × 108 B = 100 × 10–6 sin $$\l

A 2 W carbon resistor is color coded with green, black, red and brown respectively. The maximum current which can be pas

A homogeneous solid cylindrical roller of radius R and mass M is pulled on a cricket pitch by a horizontal force. Assumi

A string of length 1 m and mass 5 g is fixed at both ends. The tension in the string is 8.0 N. The string is set into vi

In an electron microscope, the resolution that can be achieved is of the order of the wavelength of electrons used. To r

A plano convex lens of refractive index $$\mu $$1 and focal length ƒ1 is kept in contact with another plano concave lens

An insulating thin rod of length $$l$$ has a linear charge density $$\rho \left( x \right)$$ = $${\rho _0}{x \over l}$$

A uniform metallic wire has a resistance of 18 $$\Omega $$ and is bent into an equilateral triangle. Then, the resistanc

The density of a material in SI units is 128 kg m–3 . In certain units in which the unit of length is 25 cm and the unit

A piece of wood of mass 0.03 kg is dropped from the top of a 100 m height building. At the same time, a bullet of mass 0

In a Young’s double slit experiment with slit separation 0.1 mm, one observes a bright fringe at angle $${1 \over {40}}

Water flows into a large tank with flat bottom at the rate of 10–4m3s–1. Water is also leaking out of a hole ofarea 1 cm

A magnet of total magnetic moment 10-2 $${\widehat i}$$ A-m2 is placed in a time varying magnetic field, B$${\widehat i}

A parallel plate capacitor is of area 6 cm2 and a separation 3 mm. The gap is filled with three dielectric materials of

To mop-clean a floor, a cleaning machine presses a circular mop of radius R vertically down with a total force F and rot

In the cube of side ‘a’ shown in the figure, the vector from the central point of the face ABOD to the central point of

A satellite is moving with a constant speed v in circular orbit around the earth. An object of mass ‘m’ is ejected from

A heat source at T = 103 K is connected to another heat reservoir at T = 102 K by a copper slab which is 1 mthick. Given

Two guns A and B can fire bullets at speeds 1 km/s and 2 km/s respectively. From a point on a horizontal ground, they ar

To get output 1 at R, for the given logic gate circuit the input values must be

In the given circuit the cells have zero internal resistance. The currents (in Amperes) passing through resistance R1 an

A block of mass m is kept on a platform which starts from rest with constant acceleration g/2 upward, as shown in figure

Two electric dipoles, A, B with respective dipole moments $${\overrightarrow d _A} = - 4qai$$ and $${\overrightarrow d