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  1. H

    Chemistry MCQ thread...

    how it cn be B yar...u used moles i guess and not concentrations
  2. H

    Chemistry MCQ thread...

    Use of the Data Booklet is relevant to this question. The bond energy of the C–H bond (438 kJ mol–1) in CH4 is typically stronger than most other aliphatic C–H bonds. This has an effect on the first step of the propagation stage of the reaction between CH4 and the halogen. CH4 + X• → •CH3 + HX...
  3. H

    Chemistry MCQ thread...

  4. H

    Chemistry MCQ thread...

    Which statement concerning the lattice structure of graphite and diamond is incorrect? A All C–C bonds in graphite and diamond are formed from sp3–sp3 overlap. B Graphite is energetically more stable than diamond. C The bond energy of the C–C bonds in graphite is greater than that in diamond. D...
  5. H

    Chemistry MCQ thread...

    Which of the following statement(s) is/are true? 1 When SiCl4 is added to water, a precipitate is formed. 2 sulfur has a higher melting point than phosphorus because the intermolecular attractions are stronger. 3 When AlCl3 is dissolved in water, [Al(H2O)5(OH)]2+(aq) is one of the ions formed.
  6. H

    biO mCqs !!!

  7. H

    Chemistry MCQ thread...

    C....mass of H and O in this compound is same....i.e 16 units
  8. H

    biO mCqs !!!

    btw...if its competitive then initial rate would match initial rate with no inhibitor !!! though some time later
  9. H

    biO mCqs !!!

    y it cnt be D...? ND Y ITS a
  10. H

    biO mCqs !!!

  11. H

    fooled the invigilator

    YA ITs allowed......
  12. H

    Chemistry MCQ thread...

    A mixture containing 0.100 mol of CaCO3 and 0.100 mol of CaO are introduced into an evacuated 0.01 m3 vessel. The vessel is heated to a constant temperature of 385 K such that the equilibrium below is established. CaCO3(s) CaO(s) + CO2(g) The partial pressure of carbon dioxide at equilibrium is...
  13. H

    Chemistry MCQ thread...

    that A...xHaZEmX
  14. H

    Chemistry MCQ thread...

    @xTHE GREAT....ehtnaoic acid cn form hydrogen bonds with water cos it contains COOH...which has the -OH groups...in which H is bonded to OXYGEN ATOM
  15. H

    clear my concept....physxx mcq

    A
  16. H

    clear my concept....physxx mcq

    i actual compared it with the case of lifting an apple in gravitatonal field....and got the ryt anser.....bt i wanted to ask if there was a negative charge...then would the work increase or decrease....and clear this to me....cos i think in dat case my analogy to earth wouldnt work
  17. H

    chemistry paper 1 prediction??

    u cn get 2-4 repeated questions....
  18. H

    Chemistry MCQ thread...

    well ans to this question...is hot conc. NaOH which reacts to form NaClO3....THIS is a reaction u shud have memorised during ur chemistry course
  19. H

    chem 2001 mcq markschemes

    YAR CN U SCAN SOME PPRS....
  20. H

    Chemistry MCQ thread...

    ya that was A barium..cos reducing agent has to loose e- and the most effective reducing agent wud be one with lowest I.E
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