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  1. B

    Chemistry: Post your doubts here!

    Its fine i got it....the ratio between expt 2 and 3
  2. B

    Chemistry: Post your doubts here!

    omg how noww??
  3. B

    Physics: Post your doubts here!

    Any tips for last minute paper 4 revision....idk anythinggggg
  4. B

    Chemistry: Post your doubts here!

    Is it zero?
  5. B

    Chemistry: Post your doubts here!

    Yea.....-160 is correct After that it's not much of a hustle.....use hess law to equate enthalpy change of sol, lattice energy and hydration energy your eqn will be -2526-160=2x-1890 X in this case is cl ions....and since 2 are need to form mgcl2 so 2x
  6. B

    Chemistry: Post your doubts here!

    You need to get the first answer to get the next one!
  7. B

    Chemistry: Post your doubts here!

    Have you first gotten the enthalpy change of solution?
  8. B

    Chemistry: Post your doubts here!

    Why these 2....is there a reason?
  9. B

    Chemistry: Post your doubts here!

    blymphocytes....is my username Also if you could send me feb-march papaers for maths,bio and chem both AS and A2 if you have them thanks
  10. B

    Chemistry: Post your doubts here!

    Alkenes can be reduced further? :O
  11. B

    Chemistry: Post your doubts here!

    Noo :( I have a query in paper 5 too.....just see if you can help me question 2 in may-june 2009 paper 51
  12. B

    Chemistry: Post your doubts here!

    No, nabh4 reduces ketones and aldehydes to alcohols
  13. B

    Chemistry: Post your doubts here!

    Its fine...i got it too, thanks!
  14. B

    Chemistry: Post your doubts here!

    Have you gotten the solution?
  15. B

    Chemistry: Post your doubts here!

    Yes, they are reduced to primary alcohols
  16. B

    Chemistry: Post your doubts here!

    Hy everyone, Could anyone please upload the 2019 feb-march ppr 4? or atleast send me a link ...Pleasee
  17. B

    Chemistry: Post your doubts here!

    Hy everyone, Could anyone please upload the 2019 feb-march ppr 4? or atleast send me a link ...thank you! :)
  18. B

    Physics: Post your doubts here!

    Thank you so muchh
  19. B

    Physics: Post your doubts here!

    hey....what topics were tested heavily so that i can prepare for my p11?
  20. B

    Physics: Post your doubts here!

    Heyy someone please help with qns 5,19,21 and 31
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