question_answer2) When r, P and M represent rate of diffusion, pressure and molecular mass, respectively, then the ratio of the rates of diffusion \[({{r}_{A}}/{{r}_{B}})\]of two gases A and B, is given as:
AIEEE Solved Paper (Held On 11 May 2011)
question_answer3) Consider thiolanion \[(R{{S}^{\Theta }})\]and alkoxyanion \[(R{{O}^{\Theta }}).\]Which of the following statements is correct?
AIEEE Solved Paper (Held On 11 May 2011)
A)
\[R{{S}^{\Theta }}\]is less basic but more nucleophilic than \[R{{O}^{\Theta }}.\]
doneclear
B)
\[R{{S}^{\Theta }}\]is more basic and more nucleophilic than \[R{{O}^{\Theta }}.\]
doneclear
C)
\[R{{S}^{\Theta }}\]is more basic but less nucleophilic than \[R{{O}^{\Theta }}.\]
doneclear
D)
\[R{{S}^{\Theta }}\]is less basic and less nucleophilic than \[R{{O}^{\Theta }}.\]
question_answer5) The molality of a urea solution in which 0.0100 g of urea, \[[{{(N{{H}_{2}})}_{2}}CO]\]is added to \[0.3000\,d{{m}^{3}}\]of water at STP is:
question_answer7) The correct order of acid strength of the following compounds: Phenol p-Cresol m-Nitrophenol p-Nitrophenol is :
AIEEE Solved Paper (Held On 11 May 2011)
question_answer8) The value of enthalpy change \[(\Delta H)\]for the reaction\[{{C}_{2}}{{H}_{5}}O{{H}_{(l)}}+3{{O}_{2(g)}}\to 2C{{O}_{2(g)}}+3{{H}_{2}}{{O}_{(l)}}\]at 27°C is \[-1366.5\text{ }kJ\text{ }mo{{l}^{-1}}.\]The value of internal energy change for the above reaction at this temperature will be :
AIEEE Solved Paper (Held On 11 May 2011)
question_answer10) Ozonolysis of an organic compound 'A' produces acetone and propionaldehyde in equimolar mixture. Identify 'A' from the following compounds :
AIEEE Solved Paper (Held On 11 May 2011)
question_answer11) Consider the reaction : \[4N{{O}_{2(g)}}+{{O}_{2(g)}}\to 2{{N}_{2}}{{O}_{5}}_{(g)}'\]\[{{\Delta }_{r}}H=-111\,kJ.\] If \[{{N}_{2}}{{O}_{5(s)}}\]is formed instead of \[{{N}_{2}}{{O}_{5(g)}}\]in the above reaction, the \[{{\Delta }_{r}}H\]value will be: (given, \[\Delta H\]of sublimation for \[{{N}_{2}}{{O}_{5}}\]is \[54kJ\,mo{{l}^{-1}}\])
AIEEE Solved Paper (Held On 11 May 2011)
question_answer12) An acid HA ionises as \[HA\underset{{}}{\leftrightarrows}{{H}^{+}}+{{A}^{-}}\] The pH of 1.0 M solution is 5. Its dissociation constant would be:
AIEEE Solved Paper (Held On 11 May 2011)
question_answer13) The correct order of electron gain enthalpy with negative sign of F,CI, Brand I, having atomic number 9,17, 35 and 53 respectively, is:
AIEEE Solved Paper (Held On 11 May 2011)
question_answer14) The frequency of light emitted for the transition n = 4 to n = 2 of\[H{{e}^{+}}\] is equal to the transition in H atom corresponding to which of the following?
AIEEE Solved Paper (Held On 11 May 2011)
question_answer15) A 5% solution of cane sugar (molar mass 342) is isotonic with 1% of a solution of an unknown solute. The molar mass of unknown solute in g/mol is:
AIEEE Solved Paper (Held On 11 May 2011)
question_answer16) In view of the signs of \[{{\Delta }_{r}}{{G}^{o}}\] for the following reactions : \[Pb{{O}_{2}}+Pb\to 2PbO,\] \[{{\Delta }_{r}}{{G}^{o}}<0\] \[Sn{{O}_{2}}+Sn\to 2SnO,\] \[{{\Delta }_{r}}{{G}^{o}}>0,\]which oxidation states are more characteristics for lead and tin ?
AIEEE Solved Paper (Held On 11 May 2011)
question_answer17) The \[{{K}_{sp}}\]for \[Cr{{(OH)}_{3}}\]is \[1.6\times {{10}^{-}}^{30}.\]The molar solubiity of this compound in water is :
AIEEE Solved Paper (Held On 11 May 2011)
question_answer19) Resistance of 0.2 M solution of an electrolyte is \[50\Omega .\]The specific conductance of the solution is \[1.3S\,{{m}^{-1}}.\]If resistance of the 0.4 M solution of the same electrolyte is \[260\Omega ,\]its molar conductivity is :
AIEEE Solved Paper (Held On 11 May 2011)
question_answer20) Among the ligands \[N{{H}_{3}},en,C{{N}^{-}}\]and CO the correct order of their increasing field strength, is:
AIEEE Solved Paper (Held On 11 May 2011)
question_answer21) Consider the following reaction: \[{{C}_{2}}{{H}_{5}}OH+{{H}_{2}}S{{O}_{4}}\to \]Product Among the following, which one cannot be formed as a product under any conditions?
AIEEE Solved Paper (Held On 11 May 2011)
question_answer24) A reactant forms two products : \[A\xrightarrow[{}]{{{k}_{1}}}B,\]Activation Energy \[E{{a}_{1}}\] \[A\xrightarrow[{}]{{{k}_{2}}}C,\] Activation Energy \[E{{a}_{2}}\] If \[E{{a}_{2}}=2E{{a}_{1}},\]then \[{{k}_{1}}\]and \[{{k}_{2}}\] are related as :
AIEEE Solved Paper (Held On 11 May 2011)
question_answer25) 25. Copper crystallises in fee lattice with a unit cell edge of 361 pm. The radius of copper atom is:
AIEEE Solved Paper (Held On 11 May 2011)
question_answer26) The mass of potassium dichromate crystals required to oxidise \[750\text{ }c{{m}^{3}}\]of 0.6 M Mohr's salt solution is : (Given molar mass potassium dichromate = 294, Mohr's salt = 392)
AIEEE Solved Paper (Held On 11 May 2011)