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  1. The Sarcastic Retard

    Chemistry: Post your doubts here!

    Do temme ur score, I scored 31 (y)
  2. The Sarcastic Retard

    Chemistry: Post your doubts here!

    Thanks. :) I totally forgot this method. :P
  3. The Sarcastic Retard

    Chemistry: Post your doubts here!

    Try wo6 paper. Its so tough. (y)
  4. The Sarcastic Retard

    Chemistry: Post your doubts here!

    Use example of CH4 CH4 ----> C + 4H
  5. The Sarcastic Retard

    Chemistry: Post your doubts here!

    http://studyguide.pk/Past%20Papers/CIE/International%20A%20And%20AS%20Level/9701%20-%20Chemistry/9701_w06_qp_1.pdf Q11
  6. The Sarcastic Retard

    Last minute preparation on MCQS 9701 and 9702. Discussion here.

    Energy need for all is same. Hence, Energy = 1 * 4.18 * 80 = 33.4KJ/Mol For option B moles will be less. 33.4 ---> 1mol 890 --> lesser than other options. :)
  7. The Sarcastic Retard

    Last minute preparation on MCQS 9701 and 9702. Discussion here.

    I am not able to see the pic... Can u again post the pic or a question paper link ??
  8. The Sarcastic Retard

    Last minute preparation on MCQS 9701 and 9702. Discussion here.

    Hows physucks going on?? :D
  9. The Sarcastic Retard

    Chemistry: Post your doubts here!

    Sometimes this happens. :)
  10. The Sarcastic Retard

    Chemistry: Post your doubts here!

    Highest is for D. Check it.
  11. The Sarcastic Retard

    Chemistry: Post your doubts here!

    No reaction between Mgcl2 and H2o
  12. The Sarcastic Retard

    Last minute preparation on MCQS 9701 and 9702. Discussion here.

    Here you go.
  13. The Sarcastic Retard

    Last minute preparation on MCQS 9701 and 9702. Discussion here.

    n = 15 * 10^-3 * 2 = 0.03mol These moles were present in 25cm^3 so 0.3mol would be present in 250cm^3. Mr of K2O = 94 1:1 ratio. Hence 94 * 0.3 = 28.2g.
  14. The Sarcastic Retard

    Chemistry: Post your doubts here!

    2) At constant temprature, Pv is proportional to n. 15) Answer is B?
  15. The Sarcastic Retard

    Chemistry: Post your doubts here!

    No, I first balanced Al and Na. Then I balanced O, then I saw there are 3 atoms of carbon present, so I knew that option A or C can come I saw option C, H molecules were not balancing so I tried with A. (y)
  16. The Sarcastic Retard

    Chemistry: Post your doubts here!

    Balancing. :)
  17. The Sarcastic Retard

    Chemistry: Post your doubts here!

    Same goes for pressure right? Increasing pressure increases both forward and backward rate? :)
  18. The Sarcastic Retard

    Chemistry: Post your doubts here!

    4H20 + Al4C3 + 4NaOH ----------> 4NaAlO2 + 3CH4
  19. The Sarcastic Retard

    Chemistry: Post your doubts here!

    propan-2-ol will be oxidised to propanone. Mr of propan-2-ol = 60 Mr of propanone = 58 moles of propan-2-ol = 0.04mol 1:1 ratio moles of propaone = 0.0.4mol mass of propaone = 2.32g 75% of mass was the product = 75% of 2.32g = 1.74g
  20. The Sarcastic Retard

    Chemistry: Post your doubts here!

    Q30
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