• We need your support!

    We are currently struggling to cover the operational costs of Xtremepapers, as a result we might have to shut this website down. Please donate if we have helped you and help make a difference in other students' lives!
    Click here to Donate Now (View Announcement)

Search results

  1. TheLeagueofShadows

    Biology; Chemistry; Physics: Post your doubts here!

    I know its c. But potassium dichromate is an oxidising agent which means it reduces itself. Now iron(ii) also reduces to form iron (iii). What am I doing wrong here?
  2. TheLeagueofShadows

    Biology; Chemistry; Physics: Post your doubts here!

    I was opting for carboxylic acid. But how are we supposed to choose our answer if the carboxylic acid formula is not right? I mean banda check karta ha?
  3. TheLeagueofShadows

    Biology; Chemistry; Physics: Post your doubts here!

    the carboxylic wala.
  4. TheLeagueofShadows

    Biology; Chemistry; Physics: Post your doubts here!

    O bhai jaan, the other question, not this one.
  5. TheLeagueofShadows

    Biology; Chemistry; Physics: Post your doubts here!

    But if you count the no. of carbon and hyrogen atoms acc. to formula, it doesnt make sense.Why?
  6. TheLeagueofShadows

    Biology; Chemistry; Physics: Post your doubts here!

    why not no of atoms?
  7. TheLeagueofShadows

    Biology; Chemistry; Physics: Post your doubts here!

    And what about this?
  8. TheLeagueofShadows

    Biology; Chemistry; Physics: Post your doubts here!

    what about this?
  9. TheLeagueofShadows

    Biology; Chemistry; Physics: Post your doubts here!

    c dafaq is thiz shizz?:o :o :o
  10. TheLeagueofShadows

    Biology; Chemistry; Physics: Post your doubts here!

    What about Caesium? Please answer this too.
  11. TheLeagueofShadows

    Biology; Chemistry; Physics: Post your doubts here!

    What do they form? Does copper react with them?what about caesium? What do they form?
  12. TheLeagueofShadows

    Biology; Chemistry; Physics: Post your doubts here!

    Can anyone tell me which metals react with water?
  13. TheLeagueofShadows

    Biology; Chemistry; Physics: Post your doubts here!

    The answer would be A. In concentrated aqueous solutions, the most reactive cations do not discharge(K, NA, CA). Instead, The H+ ion discharges. If sodium can't be discharged, this leaves us with copper in (A) and (B). COPPER IS LESS REACTIVE THAN HYDROGEN IN THE REACTIVITY SERIES. So (B) is...
  14. TheLeagueofShadows

    http://phisting.tumblr.com/post/32289982488

    http://phisting.tumblr.com/post/32289982488
  15. TheLeagueofShadows

    Biology; Chemistry; Physics: Post your doubts here!

    AAny body help me with this question. With explanation please! :p
  16. TheLeagueofShadows

    Biology; Chemistry; Physics: Post your doubts here!

    The answer is B. In the question, it is specified that we have to reuse the same titration flask, but the next reaction for which we have to reuse the flask has not been mentioned. For this, we rinse with tap water and then with distilled water. If WE HAD TO DO THE SAME REACTION BETWEEN THE SAME...
  17. TheLeagueofShadows

    Biology; Chemistry; Physics: Post your doubts here!

    Thanks! :D
  18. TheLeagueofShadows

    Biology; Chemistry; Physics: Post your doubts here!

    Q3,22 and 37. Please with explanation. http://papers.xtremepapers.com/CIE/Cambridge%20International%20O%20Level/Chemistry%20(5070)/5070_s03_qp_1.pdf
  19. TheLeagueofShadows

    Biology; Chemistry; Physics: Post your doubts here!

    For 9, look at the graph to get the readings. At 200 g mass, the extension was 2 cm. And use the diagram to find the original length of spring(9-2) 7. Now, at 100 g mass the graph shows extension of 1 cm. Add it to original value so ans would be 8 I think.
  20. TheLeagueofShadows

    Biology; Chemistry; Physics: Post your doubts here!

    T Thanks
Top