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  1. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    s11 qp12 , q7 it would be A as all other sources would have been used up by plant itself, and only the cellulose part remains in large amount s10 qp11 , q4(C) boiling denatures enzymes so result is large amount without boiling and traces after boiling so option 4 and 5 , q16(C) when person...
  2. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    k, make sure u inform me!
  3. ashiqbal

    c2? well its going on all right

    c2? well its going on all right
    • ashiqbal
    • Profile post comment
  4. ashiqbal

    how is ur prep going on?

    how is ur prep going on?
    • ashiqbal
    • Profile post comment
  5. ashiqbal

    DEAD! X-P

    DEAD! X-P
    • ashiqbal
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  6. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    why is it (B) in mcq 3?
  7. ashiqbal

    Maths, Addmaths and Statistics: Post your doubts here!

    any question in particular? maybe we can answer that, that's what we are here for!
  8. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    this is what i thought but for the first the answer in marking scheme is B and for the second the answer is B, although i have understood second question (alkane + chlorine --> chloro-alkane + HCl), i am still confused about the first one. why is it given in mark scheme as B ?
  9. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    okay some mcqs i was stumped at: 3 In a titration between an acid (in the burette) a nd an alkali, you may need to re-use the same titration flask. Which is the best procedure for rinsing the flask? A Rinse with distilled water and then with the alkali. B Rinse with tap water and then with...
  10. ashiqbal

    Maths, Addmaths and Statistics: Post your doubts here!

    the probability that she scores 1 goal is the probability that she neither scores less than one, nor more than one, which cancels out all possibilities except that she scores one goal. to cancel out all other possibilities, we subtract all other possibilities from 1 (1 means that all events can...
  11. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    yes you are right
  12. ashiqbal

    Maths, Addmaths and Statistics: Post your doubts here!

    (a) (i) 2/3 * 2/3= 4/9 (ii) 1/3 * 1/3= 1/9 (b) 2/3 => she scores less than 1 goal 1/12 => she scores more than 1 goal she scores 1 goal = 1-(2/3 + 1/12) = 1/4
  13. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    colour for copper oxide is black, lead oxide is yellow, question comes on these two colours. most of other oxides are white. chlorine = yellowish-green, bromine = redddish-brown and iodine => solid = black, vapour = purple and iodine gas I2 is brown. no more colours are important, and some are...
  14. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    Q2 c (i) make a line from q, parallel to APwhcich will make an angle of 25degrees(alternate angles) with AQ.subtract 25 from 270 to get bearing = 245 ------(ii) in this case, the base will be 100m, the height will be 30m. to find angle of depression from top of lighthouse, use tan-1(30/100) to...
  15. ashiqbal

    Seriously exams Y u no finish quickly??

    Seriously exams Y u no finish quickly??
  16. ashiqbal

    Maths, Addmaths and Statistics: Post your doubts here!

    shear parallel to x-axis, invariant line x-axis shear parallel to y-axis, invariant line y-axis
  17. ashiqbal

    Computer studies ! Post your doubts here =)

    lets shift addmaths discussion to its proper thread so everyone can be happy :) !
  18. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    it is used as switch
  19. ashiqbal

    Biology; Chemistry; Physics: Post your doubts here!

    remember this point> the valves will open only if the pressure behind them is greater than the pressure forward. for example if u look at point A, the pressure in ventricle becomes greater than pressure in atrium, so to prevent backflow, atrioventricular valves(in this case bicuspid valve)...
  20. ashiqbal

    Computer studies ! Post your doubts here =)

    tell me if this helps
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