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  1. сᴏᴏʟ сяуѕтᴀʟѕ

    ANSWERING ALL BIO/CHEM PAPER 1 DOUBTS :)

    Assalam-o-alaikum wr wb.. well while doing the pass papers...i separated the ones which i felt like i need to see them atleast once in the last second or something...should i send you them? some of them you might find ez...like fractional distillation of petroleum but i separated those questions...
  2. сᴏᴏʟ сяуѕтᴀʟѕ

    ANSWERING ALL BIO/CHEM PAPER 1 DOUBTS :)

    Your welcome! ohh okie..and nah! no plans for A levels right now..bno future planning =P
  3. сᴏᴏʟ сяуѕтᴀʟѕ

    ANSWERING ALL BIO/CHEM PAPER 1 DOUBTS :)

    sleep now..wake up early in the morning and do some more pass papers other wise relax :P sure Inshallah!
  4. сᴏᴏʟ сяуѕтᴀʟѕ

    ANSWERING ALL BIO/CHEM PAPER 1 DOUBTS :)

    ohh yeah that was A...:)
  5. сᴏᴏʟ сяуѕтᴀʟѕ

    ANSWERING ALL BIO/CHEM PAPER 1 DOUBTS :)

    :) umm...which foodchain? the fungi one? where it is a decomposer??
  6. сᴏᴏʟ сяуѕтᴀʟѕ

    BIO PPR 1 V1 <3

    Assalam-o-alaikum wr wb... they were talking about the 'cycle' carbon being moved to the atmosphere ALSO comes in the 'carbon cycle' you can confirm this by checking your book :)
  7. сᴏᴏʟ сяуѕтᴀʟѕ

    POST YOUR BIO AND CHEM PAPER 1 DOUBT HERE !!!!

    more detail: firstly hydrogen gas has no effect on the universal indicator paper...secondly the gas escapes so what is remaining at the cathode? sodium hydroxide..so the color will be blue!
  8. сᴏᴏʟ сяуѕтᴀʟѕ

    POST YOUR BIO AND CHEM PAPER 1 DOUBT HERE !!!!

    Assalam-o-alaikum wr wb.. Well...it is the electrolysis of concentrated aquesous sodium chloride..which means that chlorine will be discharged at the anode and hydrogen at the cathode... the color of universal indicator will change to colorless as we know that chlorine bleaches it... on the...
  9. сᴏᴏʟ сяуѕтᴀʟѕ

    BIO PPR 1 V1 <3

    Assalam-o-alaikum wr wb... the question was in co ordinated science...you may check the mark scheme of it to be sure, your answer is correct anyway :) take the link from the following post
  10. сᴏᴏʟ сяуѕтᴀʟѕ

    POST YOUR BIO AND CHEM PAPER 1 DOUBT HERE !!!!

    Assalam-o-alaikum wr wb.. bcoz the question says 'per carbon atom'...Methane can make 2 molecules of water..but the last one can make only 1 (each) hope you get it!
  11. сᴏᴏʟ сяуѕтᴀʟѕ

    POST YOUR BIO AND CHEM PAPER 1 DOUBT HERE !!!!

    Assalam-o-alaikum wr wb.. yeahp it is wrong! the answer is B :) bcoz with potassium nitrate, no reaction takes place..
  12. сᴏᴏʟ сяуѕтᴀʟѕ

    BIO PPR 1 V1 <3

    nope...it says these places!
  13. сᴏᴏʟ сяуѕтᴀʟѕ

    BIO PPR 1 V1 <3

    Assalam-o-alaikum wr wb... bacteria were collected where there is more oxygen..the question was why were they arranged in those places...'those places' were chloroplast or something...so more oxygen is given out providing more concentration of O2 for bacteria to live in :)
  14. сᴏᴏʟ сяуѕтᴀʟѕ

    POST YOUR BIO AND CHEM PAPER 1 DOUBT HERE !!!!

    Assalam-o-alaikum wr wb.. this is bcoz the question is asking for a 'suitable' method..and reacting potassium metal with HCl is a VERY vigorous reaction......
  15. сᴏᴏʟ сяуѕтᴀʟѕ

    BIO PPR 1 V1 <3

    Assalam-o-alaikum wr wb... eye - A ethanol and carbon dioxide.......
  16. сᴏᴏʟ сяуѕтᴀʟѕ

    POST YOUR BIO AND CHEM PAPER 1 DOUBT HERE !!!!

    Your welcome :)
  17. сᴏᴏʟ сяуѕтᴀʟѕ

    BIO PPR 1 V1 <3

    Your welcome :)
  18. сᴏᴏʟ сяуѕтᴀʟѕ

    POST YOUR BIO AND CHEM PAPER 1 DOUBT HERE !!!!

    Assalam-o-alaikum wr wb.. nope! cuz adding water to anhydrous salt, is an exothermic reaction!
  19. сᴏᴏʟ сяуѕтᴀʟѕ

    BIO PPR 1 V1 <3

    Your welcome :D
  20. сᴏᴏʟ сяуѕтᴀʟѕ

    ANSWERING ALL BIO/CHEM PAPER 1 DOUBTS :)

    really sorry for so late reply :oops: well..the answer is iron...slag comes out from the slag notch which is below the 'hot air in' thingy! get it? basically slag is on top of iron..
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