Solved papers for JEE Main & Advanced AIEEE Solved Paper-2003
done AIEEE Solved Paper-2003 Total Questions - 75
question_answer1) In Bohr series of lines of hydrogen spectrum, the third line from the red end corresponds to which one of the following inner-orbit jumps of the electron for Bohr orbits in an atom of hydrogen?
AIEEE Solved Paper-2003
question_answer2) The de-Broglie wavelength of a tennis ball of mass 60g moving with a velocity of 10 m/s is approximately (Planck's constant, \[h=6.63\times {{10}^{-34}}\] Js)
AIEEE Solved Paper-2003
question_answer3) The orbital angular momentum for an electron revolving in an orbit is given by \[\sqrt{l(l+1)}\frac{h}{2\pi }\]. This momentum for an s-electron will be given by
question_answer4) How many unit cells are present in a cube shaped ideal crystal of \[NaCl\] of mass \[1.00\]g? [At. masses Na \[=23,\,\,Cl=35.5\]]
AIEEE Solved Paper-2003
question_answer8) Graphite is a soft solid lubricant extremely difficult to melt. The reason for this anomalous behaviour is that graphite
AIEEE Solved Paper-2003
A)
is a non-crystalline substance
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B)
is an allotropic form of diamond
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C)
has molecules of variable molecular masses like polymers
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D)
has carbon atoms arranged in large plates of rings of strongly bound carbon atoms with weak interplate bonds
question_answer11) According to the kinetic theory of gases, in an ideal gas, between two successive collisions a gas molecule travels
AIEEE Solved Paper-2003
question_answer15) Among the following four structures I to IV \[{{C}_{2}}{{H}_{5}}-\overset{\begin{smallmatrix} C{{H}_{3}} \\ || \end{smallmatrix}}{\mathop{C}}\,H-{{C}_{3}}{{H}_{7}}C{{H}_{3}}-\overset{\begin{smallmatrix} O \\ || \end{smallmatrix}}{\mathop{C}}\,-\overset{\begin{smallmatrix} C{{H}_{3}} \\ || \end{smallmatrix}}{\mathop{C}}\,H-{{C}_{2}}{{H}_{5}}\] (I) (II) \[H-\overset{\begin{smallmatrix} H \\ | \end{smallmatrix}}{\mathop{{{\underset{\begin{smallmatrix} | \\ H \end{smallmatrix}}{\mathop{C}}\,}^{\oplus }}}}\,\] \[{{C}_{2}}{{H}_{5}}-\overset{\begin{smallmatrix} C{{H}_{3}} \\ | \end{smallmatrix}}{\mathop{C}}\,H-{{C}_{2}}{{H}_{5}}\] (III) (IV) it is true that
AIEEE Solved Paper-2003
question_answer20) In the anion \[HCO{{O}^{-}}\] the two carbon-oxygen bonds are found to be of equal length. What is the reason for it?
AIEEE Solved Paper-2003
A)
Electronic orbits of carbon atom are hybridized
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B)
The \[c=0\] bond is weaker than the C?O bond
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C)
The anion \[HCO{{O}^{-}}\] has two resonating structures
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D)
The anion is obtained by the removal of a proton from the acid molecule
question_answer22) The atomic numbers of vanadium (V), chromium (Cr), manganese (Mn) and iron (Fe) are respectively 23, 24, 25 and 26. Which one of these may be expected to have the highest second ionisation enthalpy?
AIEEE Solved Paper-2003
question_answer23) Consider the reaction equilibrium, \[2S{{O}_{2}}(g)+{{O}_{2}}(g)2S{{O}_{3}}(g);\] \[\Delta {{H}^{o}}=-198\,k\,J\] On the basis of Le Chatelier's principle, the condition favourable for the forward reaction is
AIEEE Solved Paper-2003
A)
lowering of temperature as well as pressure
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B)
increasing temperature as well as pressure
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C)
lowering the temperature and increasing the pressure
question_answer24) What volume of hydrogen gas, at 273K and 1 atm pressure will be consumed in obtaining \[21.6\] g of elemental boron (atomic mass \[=10.8\]) from the reduction of boron trichloride by hydrogen?
AIEEE Solved Paper-2003
question_answer25) For the reaction equilibrium, \[{{N}_{2}}{{O}_{4}}(g)\overset{{}}{leftrightarrows}2NO(g)\] the concentrations of \[{{N}_{2}}{{O}_{4}}\] and \[N{{O}_{2}}\] at equilibrium are \[4.8\times {{10}^{-2}}\] and \[1.2\times {{10}^{-2}}mol\,{{L}^{-1}}\] respectively. The value of \[{{K}_{c}}\] for the reaction is
AIEEE Solved Paper-2003
question_answer26) The solubility in water of a sparingly soluble salt \[A{{B}_{2}}\] is \[1.0\times {{10}^{-5}}mol\,{{L}^{-1}}\] Its solubility product number will be
AIEEE Solved Paper-2003
question_answer27) When during electrolysis of a solution of \[AgN{{O}_{3}}\], 9650 coulombs of charge pass through the electroplating bath, the mass of silver deposited on the cathode will be
AIEEE Solved Paper-2003
question_answer28) For the redox reaction, \[Zn(s)+C{{u}^{2+}}(0.1M)\xrightarrow{{}}Z{{n}^{2+}}(1M)+Cu(s)\]taking place in a cell, \[E_{cell}^{o}\] is \[1.10\] volt. \[{{E}_{cell}}\] for the cell will be \[\left( 2.303\frac{RT}{F}=0.0591 \right)\]
AIEEE Solved Paper-2003
question_answer29) In a \[0.2\] molal aqueous solution of a weak acid HX, the degree of ionisation is \[0.3\]. Taking \[{{K}_{f}}\] for water as \[1.85\], the freezing point of the solution will be nearest to
AIEEE Solved Paper-2003
question_answer30) The rate law for a reaction between the substances A and B is given by rate \[=k\,{{[A]}^{n}}{{[B]}^{m}}\]. On doubling the concentration of A and halving the concentration of B, the ratio of the new rate to the earlier rate of the reaction will be as
AIEEE Solved Paper-2003
question_answer31) 25 mL of a solution of barium hydroxide on titration with \[0.1\] molar solution of hydrochloric acid gave a titre value of 35 mL. The molarity of barium hydroxide solution was
AIEEE Solved Paper-2003
question_answer32) The correct relationship between free energy change in a reaction and the corresponding equilibrium constant \[{{K}_{c}}\] is
AIEEE Solved Paper-2003
question_answer33) If at 298K the bond energies of \[C-H,C-C,\,C=C\] and \[H-H\] bonds are respectively 414, 347, 615 and 435 kJ \[mo{{l}^{-1}}\], the value of enthalpy change for the reaction \[{{H}_{2}}C=C{{H}_{2}}(g)+{{H}_{2}}(g)\xrightarrow{\,}\,{{H}_{3}}C-C{{H}_{3}}(g)\] at 298K will be
AIEEE Solved Paper-2003
question_answer37) For the reaction system \[2NO(g)+{{O}_{2}}(g)\xrightarrow{{}}2N{{O}_{2}}(g)\] volume is suddenly reduced to half its value by increasing the pressure on it. If the reaction is of first order with respect to \[{{O}_{2}}\] and second order with respect to NO; the rate of reaction will
AIEEE Solved Paper-2003
question_answer38) For a cell reaction involving a two-electron change, the standard emf of the cell is found to be \[0.295\] V at \[{{25}^{o}}C\]. The equilibrium constant of the reaction at \[{{25}^{o}}C\] will be
AIEEE Solved Paper-2003
question_answer39) In an irreversible process taking place at constant T and p and in which only pressure-volume work is being done, the change in Gibbs free energy (dG) and change in entropy (dS), satisfy the criteria
AIEEE Solved Paper-2003
question_answer41) In the respect of the equation \[k=A{{e}^{-{{E}_{\alpha }}/RT}}\] in chemical kinetics, which one of the following statements is correct?
AIEEE Solved Paper-2003
question_answer42) Standard reduction electrode potentials of three metals A, B and C are \[+1.5\] V, \[-3.0\] V and \[-1.2\] V respectively. The reducing power of these metals are
AIEEE Solved Paper-2003
question_answer45) A red solid is insoluble in water. However, it becomes soluble if some KI is added to water. Heating the red solid in a test tube results in liberation of some violet coloured fumes and droplets of a metal appear on the cooler parts of the test tube. The red solid is
AIEEE Solved Paper-2003
question_answer46) Concentrated hydrochloric acid when kept in open air sometimes produces a cloud of white fumes. The explanation for it is that
AIEEE Solved Paper-2003
A)
concentrated hydrochloric acid emits strongly smelling HCI gas all the time
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B)
oxygen in air reacts with the emitted HCI gas to form a cloud of chlorine gas
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C)
strong affinity of HCI gas for moisture in air results in forming of droplets of liquid solution which appears like a cloudy smoke
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D)
due to strong affinity for water, concentrated hydrochloric acid pulls moisture of air towards itself. This moisture forms droplets of water and hence the cloud
question_answer51) Ammonia forms the complex ion \[{{[Cu{{(N{{H}_{3}})}_{4}}]}^{2+}}\] with copper ions in the alkaline solutions but not in acidic solutions. What is the reason for it?
AIEEE Solved Paper-2003
A)
In acidic solutions hydration protects copper ions
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B)
In acidic solutions protons coordinate with ammonia molecules forming \[NH_{4}^{+}\] ions and \[N{{H}_{3}}\] molecules are not available
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C)
In alkaline solutions insoluble \[Cu{{(OH)}_{2}}\] is precipitated which is soluble in excess of any alkali
question_answer52) One mole of the complex compound \[Co{{(N{{H}_{3}})}_{5}}C{{l}_{3}}\], gives 3 moles of ions on dissolution in water. One mole of the same complex reacts with two moles of \[AgN{{O}_{3}}\] solution to yield two moles of \[AgCl\] (s). The structure of the complex is
AIEEE Solved Paper-2003
question_answer53) The radius of \[L{{a}^{3+}}\] (atomic number of \[La=57\]) is \[1.06\overset{o}{\mathop{A}}\,\]. Which one of the following given values will be closest to the radius of \[L{{u}^{3+}}\] (atomic number of \[Lu=71\])?
AIEEE Solved Paper-2003
question_answer54) The radionuclide \[_{90}^{234}Th\] undergoes two successive \[\beta \] -decays followed by one \[\alpha \] -decay. The atomic number and the mass number respectively of the resulting radionuclide are
AIEEE Solved Paper-2003
question_answer55) the half-life of a radioactive isotope is 3 h. If the initial mass of the isotope were 256 g, the mass of it remaining undecayed after 18 h would be
AIEEE Solved Paper-2003
question_answer59) The correct order of increasing basic nature for the bases \[N{{H}_{3}},C{{H}_{3}}N{{H}_{2}}\] and \[{{(C{{H}_{3}})}_{2}}NH\]is
AIEEE Solved Paper-2003
question_answer62) During dehydration of alcohols to alkenes by heating with concentrated \[{{H}_{2}}S{{O}_{4}}\] the initiation step is
AIEEE Solved Paper-2003
question_answer66) For making good quality mirrors, plates of float glass are used. These are obtained by floating molten glass over a liquid metal which does not solidify before glass. The metal used can be
AIEEE Solved Paper-2003
question_answer69) Bottles containing \[{{C}_{6}}{{H}_{5}}I\] and \[{{C}_{6}}{{H}_{5}}C{{H}_{2}}I\] lost their original labels. They were labelled A and B for testing. A and B were separately taken in a test tube and boiled with \[NaOH\] solution. The end solution in each tube was made acidic with dilute \[HN{{O}_{3}}\] and then some \[AgN{{O}_{3}}\] solution was added. Substance B gave a yellow precipitate. Which one of the following statements is true for this experiment?
AIEEE Solved Paper-2003
question_answer71) The internal energy change when a system goes from state A to B is 40 kJ/mol. If the system goes from A to B by a reversible path and returns to state A by an irreversible path, what would be the net change in internal energy?
AIEEE Solved Paper-2003
question_answer74) On mixing a certain alkane with chlorine and irradiating it with Ultraviolet light, it forms only one monochloroalkane. This alkane could be
AIEEE Solved Paper-2003