Solved papers for JEE Main & Advanced AIEEE Solved Paper-2007

done AIEEE Solved Paper-2007 Total Questions - 40

• question_answer1) The energies of activation for forward and reverse reactions for \[\frac{1}{4}\] are \[\frac{1}{2}\]and\[5\,\Omega \]respectively. The presence of a catalyst lowers the activation energy of both (forward and reverse) reactions by\[(1-e)\] The enthalpy change of the reaction \[({{A}_{2}}-{{B}_{2}}\,\to 2\,\,AB)\] in the presence of catalyst will be (in\[(1-{{e}^{-1}})\])       AIEEE  Solved  Paper-2007
  A)
   300                       
  done clear
  B)
          120                       
  done clear
  C)
          280                       
  done clear
  D)
          -20
  done clear
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• question_answer2) The\[\frac{a}{2}\]\[2a\]was allowed to be completely discharged at 298 K. The relative concentration of\[\frac{1}{4}\]to\[\frac{1}{2}\]\[I\]is       AIEEE  Solved  Paper-2007
  A)
   Antilog (24.08)                 
  done clear
  B)
          37.3                                      
  done clear
  C)
          \[{{M}_{O}}\]                  
  done clear
  D)
         \[_{8}{{O}^{17}},{{M}_{p}}\]
  done clear
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• question_answer3) The\[{{M}_{n}}\]of a weak acid (H A) is 4.5. The\[({{M}_{O}}-8{{M}_{p}}){{c}^{2}}\] of an aqueous buffered solution of HA in which 50% of the acid ionized is       AIEEE  Solved  Paper-2007
  A)
   4.5                        
  done clear
  B)
          2.5                        
  done clear
  C)
          9.5                        
  done clear
  D)
          7.0
  done clear
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• question_answer4) Consider the reaction, \[2A+B\to \] products When concentration of B alone was doubled, the half-life did not change. When the concentration of A alone was doubled, the rate increased by two times. The unit of rate constant for this reaction is       AIEEE  Solved  Paper-2007
  A)
   \[{{M}_{O}}{{c}^{2}}\]                 
  done clear
  B)
          no unit                
  done clear
  C)
          \[({{M}_{O}}-17{{M}_{n}}){{c}^{2}}\]                    
  done clear
  D)
          \[p-n\]
  done clear
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• question_answer5) Identify the incorrect statement among the following.       AIEEE  Solved  Paper-2007
  A)
   d-block elements show irregular and erratic chemical properties among themselves
  done clear
  B)
          La and Lu have partially filled d orbitals and no other partially filled orbitals
  done clear
  C)
          The chemistry of various lanthanoids is very similar
  done clear
  D)
          4f and 5f orbitals are equally shielded
  done clear
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• question_answer6) Which one of the following has a square planar geometry? (At. no.\[hvc\])       AIEEE  Solved  Paper-2007
  A)
   \[hv/{{c}^{2}}\]               
  done clear
  B)
          \[hv/c\]                              
  done clear
  C)
          \[v={{V}_{0}}+gt+f{{t}^{2}}.\]                   
  done clear
  D)
          \[x=0\]
  done clear
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• question_answer7) Which of the following molecules is expected to rotate the plane of plane-polarised light?       AIEEE  Solved  Paper-2007
  A)
   
  done clear
  B)
  
  done clear
  C)
   
  done clear
  D)
   
  done clear
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• question_answer8) The secondary structure of a protein refers to       AIEEE  Solved  Paper-2007
  A)
   \[t=0,\]helical backbone
  done clear
  B)
          hydrophobic interactions
  done clear
  C)
          sequence of a-amino acids
  done clear
  D)
          fixed configuration of the polypeptide backbone
  done clear
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• question_answer9) Which of the following reactions will yield, 2, 2-dibromopropane?       AIEEE  Solved  Paper-2007
  A)
   \[(t=1)\]
  done clear
  B)
          \[{{V}_{0}}+2g+3f\]
  done clear
  C)
          \[{{V}_{0}}+g/2+f/3\]
  done clear
  D)
          \[{{V}_{0}}+g+f\]
  done clear
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• question_answer10) In the chemical reaction, \[{{V}_{0}}+g/2+f\] \[\sqrt{2}{{I}_{AC}}={{I}_{EF}}\]the compounds (A) and (B) are respectively       AIEEE  Solved  Paper-2007
  A)
   \[{{I}_{AD}}=4{{I}_{EF}}\]and \[{{I}_{AC}}={{I}_{EF}}\]
  done clear
  B)
          \[{{I}_{AC}}=\sqrt{2}{{I}_{EF}}\]and\[x={{x}_{0}}\cos (\omega t-\pi /4)\]
  done clear
  C)
          \[a=A\text{ }cos(\omega t+\delta ),\]and \[A={{x}_{0}},\text{ }\delta =-\pi /4\]
  done clear
  D)
          \[A={{x}_{0}}{{\omega }^{2}},\text{ }\delta =\pi /4\]and\[A={{x}_{0}}{{\omega }^{2}},\text{ }\delta =-\pi /4\]
  done clear
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• question_answer11) The  reaction of toluene with\[A={{x}_{0}}{{\omega }^{2}},\text{ }\delta =3\pi /4\]in the presence of \[FeC{{l}_{3}}\] gives predominantly       AIEEE  Solved  Paper-2007
  A)
   benzoyl chloride
  done clear
  B)
          benzyl chloride
  done clear
  C)
          o - and p-chlorotoluene
  done clear
  D)
          m-chlorotoluene
  done clear
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• question_answer12) Presence of a nitro group in a benzene ring       AIEEE  Solved  Paper-2007
  A)
   activates the ring towards electrophilic substitution
  done clear
  B)
          renders the ring basic
  done clear
  C)
          deactivates the ring towards nucleophilic substitution
  done clear
  D)
          deactivates the ring towards electrophilic substitution
  done clear
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• question_answer13) In which of the following ionization processes, the bond order has, increased and the magnetic behaviour has changed?       AIEEE  Solved  Paper-2007
  A)
   \[Ge\]                 
  done clear
  B)
          \[Si\]   
  done clear
  C)
                          \[Ge\]                 
  done clear
  D)
          \[v=E\times B/{{B}^{2}}\]
  done clear
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• question_answer14) The actinoids exhibit more number of oxidation states in general than the lanthanides. This is because       AIEEE  Solved  Paper-2007
  A)
   the\[v=B\times E/{{B}^{2}}\]orbitals are more buried than the \[v=E\times B/{{E}^{2}}\]orbitals
  done clear
  B)
   there is a similarity between\[v=B\times E/{{E}^{2}}\]and\[\mu m\] orbitals in their angular part of the wave function
  done clear
  C)
   the actinoids are more reactive than the lanthanoids
  done clear
  D)
   the\[V(x)=20/({{x}^{2}}-4)\]orbitals extend further from the nucleus than the\[x=4\]orbitals
  done clear
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• question_answer15) Equal masses of methane and oxygen are mixed in an empty container at\[\frac{5}{3}V/\mu m\]. The fraction of the total pressure exerted by oxygen is       AIEEE  Solved  Paper-2007
  A)
   \[x\]                    
  done clear
  B)
          \[\frac{5}{3}V/\mu m\]               
  done clear
  C)
          \[x\]                   
  done clear
  D)
          \[\frac{10}{9}V/\mu m\]
  done clear
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• question_answer16) A 5.25% solution of a substance is isotonic with a 1.5% solution of urea (molar mass \[=60\,g\,mo{{l}^{-1}}\]) in the same solvent. If the densities of both the solutions are assumed to be equal to\[x\] the molar mass of the substance will be       AIEEE  Solved  Paper-2007
  A)
   \[\frac{10}{9}V/\mu m\]             
  done clear
  B)
   \[x\]
  done clear
  C)
          \[\frac{mF}{M}\]    
  done clear
  D)
          \[\frac{(M+m)F}{m}\]
  done clear
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• question_answer17) Assuming that water vapour is an ideal gas, the internal energy change(\[\frac{mF}{(m+M)}\])when 1 mole of water is vapourised at 1 bar pressure and\[\frac{MF}{(m+M)}\](Given : molar enthalpy of vaporisation of water at 1 bar and 373\[-20cm\]and\[-10cm\])will be       AIEEE  Solved  Paper-2007
  A)
   \[+20\text{ }cm\]           
  done clear
  B)
   \[+10\text{ }cm\]
  done clear
  C)
          \[{{T}_{1}}\]
  done clear
  D)
          \[{{T}_{2}}\]
  done clear
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• question_answer18) In a saturated solution of the sparingly soluble strong electrolyte\[{{l}_{1}}\] (Molecular mass =283), the equilibrium which sets in, is \[{{l}_{2}}\] If the solubility product constant, \[{{k}_{1}}\]of\[{{k}_{2}},\]at a given temperature is\[({{K}_{2}}{{l}_{2}}{{T}_{1}}+{{K}_{1}}{{l}_{1}}{{T}_{2}})/({{K}_{1}}{{l}_{1}}+{{K}_{2}}{{l}_{2}})\] what is the mass of \[({{K}_{2}}{{l}_{1}}{{T}_{1}}+{{K}_{1}}{{l}_{2}}{{T}_{2}})/({{K}_{2}}{{l}_{1}}+{{K}_{1}}{{l}_{2}})\]contained in 100 mL of its saturated solution?       AIEEE  Solved  Paper-2007
  A)
   \[({{K}_{1}}{{l}_{2}}{{T}_{1}}+{{K}_{2}}{{l}_{1}}{{T}_{2}})/({{K}_{1}}{{l}_{2}}+{{K}_{2}}{{l}_{1}})\]
  done clear
  B)
          \[({{K}_{1}}{{l}_{1}}{{T}_{1}}+{{K}_{2}}{{l}_{2}}{{T}_{2}})/({{K}_{1}}{{l}_{1}}+{{K}_{2}}{{l}_{2}})\]
  done clear
  C)
   \[{{C}_{p}}\]     
  done clear
  D)
          \[{{C}_{y}}\]
  done clear
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• question_answer19) A radioactive element gets spilled over the floor of a room. Its half-life period is 30 days. If the initial activity is ten times the permissible value, after how many days will it be safe to enter the room?       AIEEE  Solved  Paper-2007
  A)
   1000 days          
  done clear
  B)
          300 days
  done clear
  C)
   10 days               
  done clear
  D)
          100 days
  done clear
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• question_answer20) Which one of the following conformations of cyclohexane is chiral?       AIEEE  Solved  Paper-2007
  A)
   Twist boat        
  done clear
  B)
   Rigid
  done clear
  C)
   Chair                    
  done clear
  D)
          Boat
  done clear
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• question_answer21) Which of the following is the correct order of decreasing\[{{C}_{p}}-{{C}_{y}}=R/28\]reactivity? (\[{{C}_{p}}-{{C}_{v}}=R/14\]halogen)       AIEEE  Solved  Paper-2007
  A)
   \[{{C}_{p}}-{{C}_{y}}=R\]
  done clear
  B)
   \[{{C}_{p}}-{{C}_{y}}=28R\]
  done clear
  C)
   \[{{I}_{1}}\]
  done clear
  D)
   \[{{I}_{2}}\]
  done clear
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• question_answer22) In the following sequence of reactions \[\frac{{{\mu }_{0}}}{2\pi }{{\left( \frac{{{I}_{1}}+{{I}_{2}}}{d} \right)}^{1/2}}\]                                                 \[\frac{{{\mu }_{0}}}{2\pi d}{{(I_{1}^{2}+I_{2}^{2})}^{1/2}}\] the compound 'D' is       AIEEE  Solved  Paper-2007
  A)
   butanal           
  done clear
  B)
          n-butyl alcohol                
  done clear
  C)
   n-propyl alcohol             
  done clear
  D)
   propanal
  done clear
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• question_answer23) Which of the following sets of quantum numbers represents the highest energy of an atom?       AIEEE  Solved  Paper-2007
  A)
   \[\frac{{{\mu }_{0}}}{2\pi d}({{I}_{1}}+{{I}_{2}})\]
  done clear
  B)
   \[\frac{{{\mu }_{0}}}{2\pi d}(I_{1}^{2}+I_{2}^{2})\]
  done clear
  C)
   \[5\,\,\Omega \]
  done clear
  D)
   \[50{}^\circ C\]
  done clear
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• question_answer24) Which of the following hydrogen bonds is the strongest?       AIEEE  Solved  Paper-2007
  A)
   \[6\,\Omega \]
  done clear
  B)
   \[100{}^\circ C.\]
  done clear
  C)
   \[0{}^\circ C\]
  done clear
  D)
   \[2\,\Omega \]
  done clear
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• question_answer25) In the reaction,  \[1\,\Omega \]                                 \[4\,\Omega \]       AIEEE  Solved  Paper-2007
  A)
   \[3\,\Omega \] is consumed for every\[\frac{1}{2}(K-1)C{{V}^{2}}\] produced
  done clear
  B)
   \[C{{V}^{2}}(K-1)/K\]is' produced regardless of temperature and pressure for every mole of\[(K-1)C{{V}^{2}}\]that reacts
  done clear
  C)
   \[{{g}_{E}}\] at STP is produced for every mole of\[{{g}_{M}}\]that reacts
  done clear
  D)
   \[\frac{electronic\text{ }charge\text{ }on\text{ }the\text{ }moon}{electronic\text{ }charge\text{ }on\text{ }the\text{ }earth}\]at STP is produced for every mole of\[{{g}_{E}}/{{g}_{M}}\]consumed
  done clear
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• question_answer26) Regular use of which of the following fertilizers increases the acidity of soil?       AIEEE  Solved  Paper-2007
  A)
   Potassium nitrate
  done clear
  B)
   Urea
  done clear
  C)
   Superphosphate of lime
  done clear
  D)
   Ammonium sulphate
  done clear
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• question_answer27) Identify the correct statement regarding a spontaneous process       AIEEE  Solved  Paper-2007
  A)
   For a spontaneous process in an isolated system, the change in entropy is positive
  done clear
  B)
   Endothermic processes are never spontaneous
  done clear
  C)
   Exothermic processes are always spontaneous
  done clear
  D)
   Lowering of energy in the reaction process is the only criterion for spontaneity
  done clear
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• question_answer28) Which of the following nuclear reactions will generate an isotope?       AIEEE  Solved  Paper-2007
  A)
   Neutron particle emission
  done clear
  B)
   Positron emission
  done clear
  C)
   \[{{g}_{M}}/{{g}_{E}}\] particle emission
  done clear
  D)
   \[\frac{\alpha }{R}\] particle emission
  done clear
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• question_answer29) The equivalent conductances of two strong electrolytes at infinite dilution in\[\frac{1}{3}\] (where ions move freely through a solution) at\[\frac{1}{2}\]are given below \[\frac{1}{6}\] \[\frac{1}{4}\] What additional information/quantity one needs to calculate\[I,\]of an aqueous solution of acetic acid?       AIEEE  Solved  Paper-2007
  A)
   \[\frac{g\sin \theta }{1+I/M{{R}^{2}}}\] of\[\frac{g\sin \theta }{1+M{{R}^{2}}/I}\]
  done clear
  B)
   \[\frac{g\sin \theta }{1-I/M{{R}^{2}}}\] of\[\frac{g\sin \theta }{1-M{{R}^{2}}/I}\]
  done clear
  C)
   The limiting equivalent conductance of \[60{}^\circ \]
  done clear
  D)
   \[\frac{\lambda }{6}\]of chloroacetic acid\[\lambda \]
  done clear
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• question_answer30) Which one of the following is the strongest base in aqueous solution?       AIEEE  Solved  Paper-2007
  A)
   Trimethylamine              
  done clear
  B)
   Aniline
  done clear
  C)
          Dimethylamine  
  done clear
  D)
          Methylamine
  done clear
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• question_answer31) The compound formed as a result of oxidation of ethyl benzene by\[I\]is       AIEEE  Solved  Paper-2007
  A)
   benzophenone               
  done clear
  B)
   acetophenone
  done clear
  C)
          benzoicacid     
  done clear
  D)
          benzyl alcohol
  done clear
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• question_answer32) The IUPAC name of is       AIEEE  Solved  Paper-2007
  A)
   1, 1-diethyl-2, 2-dimethylpentane
  done clear
  B)
   4, 4-dimethyl-5, 5-diethylpentane
  done clear
  C)
   5, 5-diethyl-4, 4-dimethylpentane
  done clear
  D)
   3-ethyl-4, 4-dimethylheptane
  done clear
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• question_answer33) Which of the following species exhibits the diamagnetic behaviour?       AIEEE  Solved  Paper-2007
  A)
   \[{{I}_{0}}\]                      
  done clear
  B)
          \[I/{{I}_{0}}\]                   
  done clear
  C)
   \[\frac{1}{\sqrt{2}}\]                    
  done clear
  D)
          \[\frac{\sqrt{3}}{2}\]
  done clear
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• question_answer34) The stability of dihalides of\[\frac{1}{2}\] and\[\frac{3}{4}\]increases steadily in the sequence       AIEEE  Solved  Paper-2007
  A)
   \[{{k}_{1}}\]
  done clear
  B)
   \[{{k}_{2}},\]
  done clear
  C)
   \[I\]
  done clear
  D)
   \[{{I}_{0}}\]
  done clear
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• question_answer35) Identify the incorrect statement among the following.       AIEEE  Solved  Paper-2007
  A)
   Ozone reacts with\[{{k}_{1}}\]to give\[{{k}_{2}}\]
  done clear
  B)
   Silicon reacts with\[f/2\]in the presence of air to give\[f/4\]and\[4f\]
  done clear
  C)
   \[2f\]reacts with excess of\[i\]to give\[\text{Q}=50\text{ }cal\]and\[W=20\text{ }cal\]
  done clear
  D)
   \[Q=36\]reacts with hot and strong\[{{\pi }^{2}}m{{a}^{2}}{{v}^{2}}\]solution to give\[\frac{1}{4}m{{a}^{2}}{{v}^{2}}\]and\[4{{\pi }^{2}}m{{a}^{2}}{{v}^{2}}\]
  done clear
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• question_answer36) The charge/size ratio of a cation determines its polarizing power. Which one of the following sequences represents the increasing order of the polarizing power of the cationic species: \[2{{\pi }^{2}}m{{a}^{2}}{{v}^{2}}\]       AIEEE  Solved  Paper-2007
  A)
   \[{{A}_{2}}+{{B}_{2}}2AB\]
  done clear
  B)
   \[180\text{ }kJ\,mo{{l}^{-1}}\]
  done clear
  C)
   \[200\,kJ\,mo{{l}^{-1}}\]
  done clear
  D)
   \[100\text{ }kJ\text{ }mo{{l}^{-1}}.\]
  done clear
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• question_answer37) The density (in\[({{A}_{2}}+{{B}_{2}}\xrightarrow[{}]{{}}2AB)\]) of a 3.60 M sulphuric acid solution that is 29%\[kJ\text{ }mo{{l}^{-1}}\] (molar mass\[Zn|Z{{n}^{2+}}(1M)||C{{u}^{2+}}(1M)|Cu\]) by mass will be       AIEEE  Solved  Paper-2007
  A)
   1.64      
  done clear
  B)
          1.88      
  done clear
  C)
          1.22      
  done clear
  D)
          1.45
  done clear
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• question_answer38) The first and second dissociation constants of an acid \[(E_{cell}^{o}=1.10V),\] are\[Z{{n}^{2+}}\]and \[C{{u}^{2+}}\] respectively. The overall dissociation constant of the acid will be       AIEEE  Solved  Paper-2007
  A)
   \[\left( \frac{[Z{{n}^{2+}}]}{[C{{u}^{2+}}]} \right)\]        
  done clear
  B)
          \[{{10}^{37.3}}\]             
  done clear
  C)
          \[9.65\times {{10}^{4}}\]    
  done clear
  D)
          \[p{{K}_{a}}\]
  done clear
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• question_answer39) A mixture of ethyl alcohol and propyl alcohol has a vapour pressure of 290 mm at 300 K. The vapour pressure of propyl alcohol is 200 mm. If the mole fraction of ethyl alcohol is 0.6, its vapour pressure (in mm) at the same temperature will be       AIEEE  Solved  Paper-2007
  A)
   350       
  done clear
  B)
   300       
  done clear
  C)
          700       
  done clear
  D)
          360
  done clear
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• question_answer40) In conversion of limestone to lime, \[pOH\] the values of\[2A+B\xrightarrow[{}]{{}}products\]and\[L\,mo{{l}^{-1}}{{s}^{-1}}\]are\[mol\,{{L}^{-1}}{{s}^{-1}}\]\[{{s}^{-1}}\]and\[Co=27,Ni=28,Fe=26,Pt=78\]respectively at 298 K and 1 bar. Assuming that\[{{[COC{{l}_{4}}]}^{2-}}\]and\[{{[FeC{{l}_{4}}]}^{2-}}\]do not change with temperature, temperature above which conversion of limestone to lime will be spontaneous is       AIEEE  Solved  Paper-2007
  A)
   1008 K                 
  done clear
  B)
          1200 K 
  done clear
  C)
          845 K                   
  done clear
  D)
          1118 K
  done clear
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