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  1. S

    Chemistry: Post your doubts here!

    OH- oxidises to give O2........you must be knowing that metals goes to cathode and non metal to anode......and at anode, oxidation takes place....and according to our E values, less positive have more tendency to get oxidised...
  2. S

    Chemistry: Post your doubts here!

    Ok....for cathode the two candidates are Mg2+ and H+ and according to E values ...H+ has more tendency to get reduced ....and for anode....at anode,oxidation occurs...so,the candidates are OH- and Br-....now, for cathode, if E values is positive, than that elements will get reduced.....and for...
  3. S

    Chemistry: Post your doubts here!

  4. S

    Chemistry: Post your doubts here!

    the half equation will be .....02+2H2O+4e=4OH.....and Br2+2e=2Br.....and if u look the E values.......OH- has greater tendency to get oxidised.......Remember this OH- comes from the dissociation of H2O present in the solution
  5. S

    Mathematics: Post your doubts here!

    Ah, yes....really sorry for that silly mistake......
  6. S

    Mathematics: Post your doubts here!

  7. S

    Mathematics: Post your doubts here!

    Use square root(a^2+b^2) formula to get the modulus.....In this case a=(1+cos2t), b=sin2t....use trignometric rules and solve it.....and for argument.....use tanx=(b/a), again solve them..... for modulus tanx=sin2t/(1+cos2t) =2sint.cost/(1+2cos^t-1)...
  8. S

    Mathematics: Post your doubts here!

    Well, in our P3, we mostly use the angles in radians, unless specified in the questi Are you giving me the method or asking whether it is correct or not?
  9. S

    A level Biology: Post your doubts here!

    Yes, but it is usually carried when the blood vessels are deposited with high amount of atheroma, which causes resistance to the blood flow in that tissue...
  10. S

    A level Biology: Post your doubts here!

    Depends on the question.....nowadays the difficulty levels are increasing......
  11. S

    Mathematics: Post your doubts here!

    No, don't worry.....you'll have to study them in A2 ...
  12. S

    Chemistry: Post your doubts here!

    You are asked to make dipetide out of 3 amino acids......so in how many ways can you arrange 2 from 3..i.e 3p2.......
  13. S

    A level Biology: Post your doubts here!

    Ok for Q.28.....P represents the wave of excitation through atrial walls......Q R S represents the excitation in ventricle walls and T represents the recovery of ventricle walls..
  14. S

    A level Biology: Post your doubts here!

    ok, at which part are you actully confused?
  15. S

    Mathematics: Post your doubts here!

    For 7(ii)...i have attatched a solved one yesterday..so look above you'll find it.....and for 7(i) use quadratic equation to find the roots...
  16. S

    yes

    yes
    • sumeru
    • Profile post comment
  17. S

    No don't know about others, but i will be giving it....

    No don't know about others, but i will be giving it....
    • sumeru
    • Profile post comment
  18. S

    Mathematics: Post your doubts here!

  19. S

    Mathematics: Post your doubts here!

    Will you post that vector question again?
  20. S

    Mathematics: Post your doubts here!

    I will solve your question within a day..is that okay?..because right now i am busy practicing in my own shedule...
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