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  1. MustafaMotani

    Biology; Chemistry; Physics: Post your doubts here!

    what have u done :confused: mass of ammonia was asked not nitrogen
  2. MustafaMotani

    Biology; Chemistry; Physics: Post your doubts here!

    NH3Cl = NH3 + HCL (Nh4)3PO4 = 3NH3 + H3PO4 (NH3)2SO3 = 2NH3 + H2SO4 NH4NO3 = NH3 + HNO3 NH4)3PO4 according to ques gives 1.5 moles of ammonia while others give 1 mol Hope I made it easy ..:)
  3. MustafaMotani

    Biology; Chemistry; Physics: Post your doubts here!

    its 1.61 same as 5 cm
  4. MustafaMotani

    Biology; Chemistry; Physics: Post your doubts here!

    ans is A ??
  5. MustafaMotani

    Biology; Chemistry; Physics: Post your doubts here!

    w8
  6. MustafaMotani

    Biology; Chemistry; Physics: Post your doubts here!

    then try that part again u have done listake there.. :).... make sure that paper u are using i.e. size of paper should be same as of cie if u are measuring length in mm
  7. MustafaMotani

    Biology; Chemistry; Physics: Post your doubts here!

    frst mcq should have NH4 instead of NH3
  8. MustafaMotani

    Biology; Chemistry; Physics: Post your doubts here!

    I dont know.. I think it should be but your method seems complicated
  9. MustafaMotani

    Biology; Chemistry; Physics: Post your doubts here!

    u see xy gievs a constant i.e. 5400 which shows that y is directly proportional to 1/x
  10. MustafaMotani

    Biology; Chemistry; Physics: Post your doubts here!

    Thats what i was asking thank you its quite sensible... :)
  11. MustafaMotani

    Biology; Chemistry; Physics: Post your doubts here!

    I would say vary the distance of lens from a whit screen with light source near optical axis (horizon) ...when u get SHARPEST image measure perpendicular distance btween screen and lens
  12. MustafaMotani

    Biology; Chemistry; Physics: Post your doubts here!

    my ques was does it effects equilibrium ?? forward backward or nothing.. ??
  13. MustafaMotani

    Biology; Chemistry; Physics: Post your doubts here!

    Ok just someone tell if catalysts affects equilibrium in reversible reactions.... I know that it reduces activation energy but it doesnt increase the amount of actual product at the end ... Help will be appreciated.. >:)
  14. MustafaMotani

    Biology; Chemistry; Physics: Post your doubts here!

    just ryt number of bounces ... it really depends on d situation
  15. MustafaMotani

    Biology; Chemistry; Physics: Post your doubts here!

    xD he is damn right... Coz when u heat a meatl rod from one end electrons there diffuse to the colder parts it is called free electron diffusion
  16. MustafaMotani

    Biology; Chemistry; Physics: Post your doubts here!

    Hydrogen yeah u are correct.. (y)
  17. MustafaMotani

    physics paper 1,2 ........can we discuus da papper nw?

    Oh! gOOd luck :) (y)
  18. MustafaMotani

    How'd your physics Papers go ?

    Oh good u got that :) (y) never mind u still havent lost A*
  19. MustafaMotani

    How'd your physics Papers go ?

    Hot electrons move from hot to cold terminal carryong heat
  20. MustafaMotani

    Biology; Chemistry; Physics: Post your doubts here!

    xD
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