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AIPMT 2015 Cancelled Paper

NEET / 176 questions

2026Wed, Jul 15, 2015 10:00 AM176 PYQs
1Coordination Compounds
Which of these statements about [Co(CN)6]3\(-\) is true?
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2Coordination Compounds
Cobalt (III) chloride forms several octahedral complexes with ammonia. Which of the following will not give test for chloride ions with silver nitrate at 25oC?
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3D And F Block Elements
Which of the following processes does not involve oxidation of iron?
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4D And F Block Elements
Magnetic moment 2.84 B.M. is given by (At. nos. Ni = 28, Ti = 22, Cr = 24, Co = 27)
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5D And F Block Elements
Because of lanthanoid contraction, which of the following pairs of elements have nearly same atomic radii? (Numbers in the parenthesis are atomic numbers)
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6Electrochemistry
A device that converts energy of combustion of fuels like hydrogen and methane, directly into electrical energy is known as
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7Haloalkanes And Haloarenes
The reaction of C6H5CH \(=\) CHCH3 with HBr produces
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8Hydrocarbons
Given :

The enthalpy of hydrogenation of these compounds will be in the order as
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9Hydrocarbons
A single compound of the structure,

is obtainable from ozonolysis of which of the following cyclic compounds?
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10Ionic Equilibrum
The Ksp of Ag2CrO4,  AgCl,  AgBr  and Agl  are respectively, 1.1 \(\times\) 10\(-\)12, 1.8 \(\times\) 10\(-\)10, 5.0 \(\times\) 10\(-\)13, 8.3 \(\times\) 10\(-\)17. Which one of the following salts will precipitate last if AgN...
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11Organic Compounds Containing Nitrogen
The electrolytic reduction of nitrobenzene in strongly acidic medium produces
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12P Block Elements
Nitrogen dioxide and sulphur dioxide have some properties in common . Which property is shown by one of these compounds , but not by the other?
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13Periodic Table And Periodicity
The species Ar, K+ and Ca2+ contain the same number of electrons. In which order do their radii increase ?
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14Polymers
Biodegradable polymer which can be produced from glycine and aminocaproic acid is
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15Processes Of Isolation Of Elements
''Metals are usually not found as nitrates in their ores.'' Out of the following two (I and II) reasons which is/are true for the above observation?
I.  Metal nitrates are highly unstable.
II.  Metal nitrates are highly soluble in water.
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16S Block Elements
Solubility of the alkaline earth metal sulphates in water decreases in the sequence
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17S Block Elements
The function of ''Sodium pump'' is a biological process operating in each and every cell of all animals. Which of the following biologically important ions is also a constituent of this pump?
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18Solid State
A given metal crystallises out with a cubic structure having edge length of 361 pm. If there are four metal atoms in one unit cell, what is the radius of one atom?
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19Solutions
The boiling point of 0.2 mol kg\(-\)1 solution of X in water is greater than equimolal solution of Y in water. Which one of the following statements is true in this case?
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20Solutions
Which one of the following electrolytes has the same value of van't Hoff factor (i) as that of Al2(SO4)3 (if all are 100% ionised)?
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21Solutions
Which of them is not equal to zero for an ideal solution?
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22Some Basic Concepts Of Chemistry
A mixture of gases contains H2 and O2 gases in the ratio of 1 : 4 (w/w). What is the molar ratio of the two gases in the mixture ?
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23Some Basic Concepts Of Organic Chemistry
The total number of \(\pi\)-bond electrons in the following structure is
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24Some Basic Concepts Of Organic Chemistry
In which of the following compounds, the C\(-\)Cl bond ionisation shall give most stable carbonium ion?
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25Some Basic Concepts Of Organic Chemistry
Given :

Which of the given compounds can exhibit tautomerism?
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26Some Basic Concepts Of Organic Chemistry
Which of the following is the most correct electron displacement for a nucleophilic reaction to take place?
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27Some Basic Concepts Of Organic Chemistry
The enolic form of ethyl accetoacetate as shown below has
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28Some Basic Concepts Of Organic Chemistry
Consider the following compounds :

Hyperconjunction occurs in
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29Some Basic Concepts Of Organic Chemistry
In Duma's method for estimation of nitrogen, 0.25 g of an organic compound gave 40 mL of nitrogen collected at 300 K temperature and 725 mm pressure. If the aqueous tension at 300 K is 25 mm, the percentage of nitrogen in the compound is
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30Structure Of Atom
The angular momentum of electron in 'd' orbital is equal to
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31Structure Of Atom
The number of d-electrons in Fe2+ (Z = 26) is not equal to the number of electrons in which one of the following ?
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32Surface Chemistry
Which property of colloidal solution is independent of charge on the colloidal particles?
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33Alternating Current
A resistance 'R' draws power 'P' when connected to an AC source. If an inductance is now placed in series with the resistance, such that the impedance of the circuit becomes 'Z'. the power drawn will be
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34Atoms And Nuclei
Consider 3rd orbit of He+ (Helium), using non-relativistic approach, the speed of electron in this orbit will be [given K = 9 \(\times\) 109 constant, Z = 2 and h (Planck's Constant) = 6.6 \(\times\) 10\(-\)34 J s]
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35Atoms And Nuclei
If radius of the \({}_{13}^{27}\) Al nucleus is taken to be RAl, then the radius of \({}_{53}^{125}\)Te nucleus is nearly
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36Capacitor
A parallel plate air capacitor of capacitance C is connected to a cell of emf V and then disconnected from it. A dielectric slab of dieletric constant K, which can just fill the air gap of the capacitor, is now inserted in it . Which of th...
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37Center Of Mass And Collision
Two spherical bodies of mass M and 5M and radii R and 2R are released in free space with initial separation between their centres equal to 12R. If they attract each other due to gravitational force only, then the distance covered by the sma...
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38Center Of Mass And Collision
Two particles of masses m1, m2 move with initial velocities u1 and u2. On collision, one of the particles get excited to higher level, after absorbing energy \(\varepsilon\). If final velocities of particles be v1 and v2 then we must have...
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39Current Electricity
Across a metallic conductor of non-uniform cross section a constant potential difference is applied. The quantity which remains constant along the conductor is
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40Current Electricity
A, B and C are voltmeters of resistance R, 1.5 R and 3R respectively as shown in the figure. When some potential difference is applied between X and Y, the voltmeter readings are VA, VB and VC respectively, Then
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41Current Electricity
A potentiometer wire has length 4 m and resistance 8 \(\Omega\). The resistance that must be connected in series with the wire and an accumulator of e.m.f. 2 V, so as to get a potential gradient 1 mV per cm on the wire is
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42Dual Nature Of Radiation And Matter
A certain metallic surface is illuminated with monochromatic light of wavelength, \(\lambda .\) The stopping potential for photo-electric current for this light is 3V0. If the same surface is illuminated with light of wavelength 2 $$\lambda...
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43Dual Nature Of Radiation And Matter
Which of the following figures represent the variation of particle momentum and the associated de-Broglie wavelength?
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44Electromagnetic Waves
A radiation of energy 'E' falls normally on a perfectly reflecting surface. The momentum transferred to the surface is (C = Velocity of light)
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45Electrostatics
The electric field in a certain region is acting radially outward and is given by E = Ar. A charge contained in a sphere of radius 'a' centred at the origin of the field, will be given by
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46Geometrical Optics
Two identical thin plano-convex glass lenses (refractive index 1.5) each having radius of curvature of 20 cm are placed with their convex surfaces in contact at the centre. The intervening space is filled with oil of refractive index 1.7. T...
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47Geometrical Optics
The refracting angle of a prism is A, and refractive index of the material of the prism is cot (A/2). The angle of minimum deviation is
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48Gravitation
Kepler's third law states that square of period of revoluation (T) of a planet around the sun, is proportional to third power of average distance r between sun and planet i.e. T2 = Kr3 here K is constant. If the masses of sun and planet are...
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49Heat And Thermodynamics
The ratio of the specific heats \({{{C_p}} \over {{C_v}}} = \gamma\) in terms of degrees of freedom (n) is given by
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50Heat And Thermodynamics
Figure below shows two paths that may be taken by a gas to go from a state A to a state C.

In process AB, 400 J of heat is added to the system and in process BC, 100 J of heat is added to the system. The heat absorbed by the system in the ...
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