AIPMT 2015

Which of the following is not the product of dehydration of

2,3-Dimethyl-2-butene can be prepared by heating which of the following compounds with a strong acid?

In the reaction with HCl, an alkene reacts in accordance with the Markovnikov's rule to give a product 1-chloro-1 methylcyclohexane. The possible alkene is

Which one of the following pairs of solution is not an acidic buffer ?

What is the pH of the resulting solution when equal volumes of 0.1 M NaOH and 0.01 M HCl are mixed?

The number of structural isomers possible from the molecular formula C3H9N is

Method by which aniline cannot be prepared is

The following reaction

is known by the name

The formation of the oxide ion, O2\(-\)(g) from oxygen atom requires first an exthermic and then an endothermic step as shown below:
O(g) + e\(-\) \(\to\) O\(-\)(g);  \(\Delta\)fHo = \(-\)141 kJ mol\(-\)1
O\(-\)(g) + e\(-\) \(\to\) O...

Which of the statements given below is incorrect?

The stability of +1 oxidation state among Al, Ga, In and Tl increases in the sequence

Strong reducing behavior of H3PO2 is due to

The variation of the boiling points of the hydrogen halides is in the order HF > HI > HBr > HCl.
What explains the higher boiling point of hydrogen fluoride?

Caprolactam is used for the manufacture of

In the extraction of copper from its sulphide ore. the metal is finally obtained by the reduction of cuprous oxide with

On heating which of the following releases CO2 most easily?

20.0 g of a magnesium carbonate sample decomposes on heating to give carbon dioxide and 8.0 g magnesium oxide. What will be the percentage purity of magnesium carbonate in the sample?
(At. wt. of Mg = 24)

The vacant space in bcc lattice unit cell is

The correct statement regarding defects in crystalline solids is

What is the mass of the precipitate formed when 50 mL of 16.9% solution of AgNO3 is mixed with 50 mL of 5.8% NaCl solution ? (Ag = 107.8, N = 14, O = 16, Na = 23, Cl = 35.5

If Avogadro number NA, is changed from 6.022 \(\times\) 1023 mol\(-\)1 to 6.022 \(\times\) 1020 mol\(-\)1, this would change

The number of water molecules is maximum in

What is the mole fraction of the solute in a 1.00 m aqueous solution?

Which of the following statements is not correct for a nucleophile?

The possible stereo-structures of CH3CHOHCOOH, which are optically active, are called

Which is the correct order of increasing energy of the listed orbitals in the atom of titanium ? (At. no. Z = 22)

The heat of combination of carbon to CO2 is \(-\)393.5 kJ/mol. The heat released upon formation of 35.2 g of CO2 from carbon and oxygen gas is

A series R-C circuit is connected to an alternating voltage source. Consider two situations :
(a)  When capacitor is air filled.
(b)  When capacitor is mica filled.
Current through resistor is \(I\) and voltage across capacitor is \(V\) ...

A nucleus of uranium decays at rest into nuclei of thorium and helium. Then

In the spectrum of hydrogen, the ratio of the longest wavelength in the Lyman series to the longest wavelength in the Balmer series is

A parallel plate air capacitor has capacity C, distance of separation between plates is d and potential difference \(V\) is applied between the plates. Force of attraction between the plates of the parallel plate air capacitor is

A circuit contains an ammeter, a battery of 30 V and a resistance 40.8 ohm all connected in series. If the ammeter has a coil of resistance 480 ohm and a shunt of 20 ohm, the reading in the ammeter will be

Two metal wires of identical dimensions are connected in series. If \(\sigma\)1 and \(\sigma\)2 are the conductivity of the combination is

A potentiometer wire of length L and a resistance r are connected in series with a battery of e.m.f. E0 and a resistance r1. An unknown e.m.f. E is balanced at a length \(l\) of the potentiometer wire. The e.m.f. E will be given by

A photoelectric surface is illuminated successively by monochromatic light of wavelength \(\lambda\) and \(\lambda/2\). If the maximum kinetic energy of the emitted photoelectrons in the second case is 3 times that in the first case, the ...

Light of wavelength 500 nm is incifent on a metal with work function 2.28 eV. The de Broglie wavelength of the emitted electron is

An electron moves on a straight line path XY as shown. The abcd is a coil adjacent to the path of electron. What will be the direction of current, if any, induced in the coil ?

The energy of the em waves is of the order of 15 keV. To which part of the spectrum does it belong ?

If potential (in volts) in a region is expressed as V(x, y, z) = 6xy \(-\) y + 2yz, the electric field (in N/C) at point (1, 1, 0) is

In an astronomical telescope in normal adjustment a straight black line of length L is drawn on inside part of objective lens. The eye-piece forms a real image of this line. The length of this image is \(I\). The magnification of the telesc...

A beam of light consisting of red, green and blue colours is incifent on a right angled prism. The refractive index of the material of the prism for the above red, green and blue wavelengths are 1.39, 1.44 and 1.47 respectively.

The pris...

A remote-sensing satellite of earth revolves in a circular orbit at a height of 0.25 \(\times\) 106 m above the surface of earth. If earth's radius is 6.38 \(\times\) 106 m and g = 9.8 ms\(-\)2, then the orbital speed of the satellite i...

A satellite S is moving in an elliptical orbit around the earth. The mass of the satellite is very small compared to the mass of the earth. Then,

The coefficient of performance of a refrigerator is 5. If the temperature inside freezer is \(-\)20oC, the temperature of the surroundings to which it rejects heat is

An ideal gas is compressed to half its initial volume by means of several processes. Which of the process results in the maximum work done on the gas ?

Two vessels separately contain two ideal gases A and B at the same temperature, the pressure of A being twice that of B. Under such conditions, the density of A is found to be 1.5 times the density of B. The ratio of molecular weight of A a...

A plank with a box on it at one end is gradually raised about the other end. As the angle of inclination with the horizontal reaches 30o, the box starts to slip and slides 4.0 m down the plank in 4.0 s.

The coefficients of static and kinet...

Two stones of masses m and 2m are whirled in horizontal circles, the heavier one in a radius \({r \over 2}\) and the lighter one in radius r. The tangential speed of lighter stone is n times that of the value of heavier stone when they expr...

A rectangular coil of length 0.12 m and width 0.1 m having 50 turns of wire is suspended vertically in a uniform magnetic field of strength 0.2 weber/m2. The coil carries a current of 2 A. If the plane of the coil is inclined at an angle of...

If vectors \(\overrightarrow A = \cos \omega t\widehat i + \sin \omega t\widehat j\) and \(\overrightarrow B = \cos {{\omega t} \over 2}\widehat i + \sin {{\omega t} \over 2}\widehat j\) are functions of time, then the value of t at which...