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Well ,the title is obvious. Any thing to share. Personally, I feel that this year's paper was DIFFICULT than the Previous years one. The questions which were doable were lenghtly (not all I mean) and some were really outsmart ...
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Is J.D.Lee appropriate for Preparing for IIT? Can anyone suggest a better name for Just Inorganic Chemistry? ...
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Please post your expected marks. mine- Physics: 140(objective)+ 0(subjective) Chemistry: 165 (as per resonance solutions) ...
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In the evaluation of NSEP, is the total of Part A and Part B considered or only the score in Part B considered ? ...
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Q1) *Image* Please explain whether (c) is true/false *Image* *Image* *Image* Answers Q67) 9 Q70) 4 Please explain your answers briefly. ...
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Q1) *Image* Please explain whether (c) is true/false *Image* *Image* *Image* Answers Q67) 9 Q70) 4 Please explain your answers briefly. ...
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*Image* Please give brief explanation also ...
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Q1) Why do we say ΔS = Qrev/T Q2) While finding direction of spontaneity for a reaction, we say ΔSsurroundings = Qsurrounding/T = -Qsystem/T ΔSsurroundings = -ΔHsystem/T ΔSuniverse = ΔSsystem- ΔHsystem/T and further we ...
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1) Ph=N=C=O ----(1. CH3MgBr)----> ----(2. H2O------> 2) Ph--Br ----(Mg)---> A --(1. C*H3COCH3)---(2.H+)---(3.heat)---> B B------(NBS)---->C-----(AgNO3/H2O)---->D D-----(O3/H2O, Zn)---------> E + F Identif ...
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*Image* + HBr ------(in Non polarizing medium)------> Ph--S--CH2--CH2--CH2--Cl -----(NaOD/D2O)-----> *Image* ...
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*Image* + HBr ------(in Non polarizing medium)------> Ph--S--CH2--CH2--CH2--Cl -----(NaOD/D2O)-----> *Image* ...
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1) Ph=N=C=O ----(1. CH3MgBr)----> ----(2. H2O------> 2) Ph--Br ----(Mg)---> A --(1. C*H3COCH3)---(2.H+)---(3.heat)---> B B------(NBS)---->C-----(AgNO3/H2O)---->D D-----(O3/H2O, Zn)---------> E + F Identif ...
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1) Ph=N=C=O ----(1. CH3MgBr)----> ----(2. H2O------> 2) Ph--Br ----(Mg)---> A --(1. C*H3COCH3)---(2.H+)---(3.heat)---> B B------(NBS)---->C-----(AgNO3/H2O)---->D D-----(O3/H2O, Zn)---------> E + F Identif ...
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*Image* + HBr ------(in Non polarizing medium)------> Ph--S--CH2--CH2--CH2--Cl -----(NaOD/D2O)-----> *Image* ...
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1) Ph=N=C=O ----(1. CH3MgBr)----> ----(2. H2O------> 2) Ph--Br ----(Mg)---> A --(1. C*H3COCH3)---(2.H+)---(3.heat)---> B B------(NBS)---->C-----(AgNO3/H2O)---->D D-----(O3/H2O, Zn)---------> E + F Identif ...
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There are 5 pairs of shoes in a cupboard from which 4 shoes are picked at random. The probability that there is atleast one pair is: (a) 8/21 (b) 11/21 (c) 12/21 (d) 13/21 Please explain if you know the solution... Thank you! ...
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A thin unifor rod is suspended in vertical plane as a physical pendulum about point A.The time period of oscillation is T0.Not counting the point A,the number N of other points of suspension on rod such that the time period o ...
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1) How can we say that entropy is a function of probability of thermodynamic sate? 2) Ludwig-Boltzmann statement for Second law of thermodynamics(SLOT): "Nature tends to pass from less probable to more probable state" How is ...
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point out the more stable enol... A) Ph-C(OH)=CH-COOEt B) CH3-C(OH)=CH-C≡N also give your reason!! :) thanks in advance! :D ...
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point out the more stable enol... A) Ph-C(OH)=CH-COOEt B) CH3-C(OH)=CH-C≡N also give your reason!! :) thanks in advance! :D ...
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point out the more stable enol... A) Ph-C(OH)=CH-COOEt B) CH3-C(OH)=CH-C≡N also give your reason!! :) thanks in advance! :D ...
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When a body is weighed on an ordinary balance we demand that the arm should should be horizontal if the weights on two pans are equal. Suppose the equal are put on two pans, the arm released. Is the torque of the two weights ...
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When a body is weighed on an ordinary balance we demand that the arm should should be horizontal if the weights on two pans are equal. Suppose the equal are put on two pans, the arm released. Is the torque of the two weights ...
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How can we account for the below Kavalues a) Benzoic acid 6.3 x 10-5 b) p-nitro benzoic acid 30.6 x 10-5 c) p-chlorobenzoic acid 6.4 x 10-5 d) p-methoxy benzoic acid 3.3 x 10-5 e) p-methyl benzoic acid 4.2 x 10-5 ...
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Why don't carbenes combine to give ethene whereas two H-C with 3 free e- combine to give H-C≡C-H ? ...
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When a body is weighed on an ordinary balance we demand that the arm should should be horizontal if the weights on two pans are equal. Suppose the equal are put on two pans, the arm released. Is the torque of the two weights ...
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When a body is weighed on an ordinary balance we demand that the arm should should be horizontal if the weights on two pans are equal. Suppose the equal are put on two pans, the arm released. Is the torque of the two weights ...
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When a body is weighed on an ordinary balance we demand that the arm should should be horizontal if the weights on two pans are equal. Suppose the equal are put on two pans, the arm released. Is the torque of the two weights ...
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When a body is weighed on an ordinary balance we demand that the arm should should be horizontal if the weights on two pans are equal. Suppose the equal are put on two pans, the arm released. Is the torque of the two weights ...
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Why don't carbenes combine to give ethene whereas two H-C with 3 free e- combine to give H-C≡C-H ? ...
