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  1. techgeek

    Nahin Tera Nasheman Qasr-e-Sultani Ke Gunbad Par Tu Shaheen Hai, Basera Kar Paharon Ki Chatanon Mein

    Nahin Tera Nasheman Qasr-e-Sultani Ke Gunbad Par Tu Shaheen Hai, Basera Kar Paharon Ki Chatanon Mein
  2. techgeek

    Chemistry: Post your doubts here!

    Your question was incomplete but I found the full one. First, we need to make the equation between S8 and O2: S8 + O2 >>> SO2 Balancing it, gets us: S8 + 8O2 >>> 8SO2 Since we know, Enthalpy change of a reaction is = Bonds broken - bonds formed fitting this into into our scenario...
  3. techgeek

    Chemistry: Post your doubts here!

    Use the ionic equations, for Sn2+ it's: Sn2+ --> Sn4+ + 2e- and for Mn2+ ions: 8H+ + MnO4^- + 5e- --> Mn2+ + 4H2O but the problem is both equations are not balanced there are 2 electrons in the first one while 5 electrons in the 2nd one, this can be solved by multiplying them by such numbers so...
  4. techgeek

    A level Biology: Post your doubts here!

    We know that rate of transpiration is slowest in low temperature, humid conditions and still air, which is in the 4th line, time taken to move 50 mm was 166 s so rate would be 50/166 =0.30 for fastest rate, it's 40 seconds so rate for the fastest is 50/40 =1.25 that makes the answer A
  5. techgeek

    A level Biology: Post your doubts here!

    Chromosomoes appear as two chromatids during prophase and metaphase, so 73+16 since total there are 1000 cells percentage will be 89/1000 x 100 =8.9%
  6. techgeek

    Mathematics: Post your doubts here!

  7. techgeek

    Chemistry: Post your doubts here!

    Multiply Mr by percentage for A : (2 x 89.8) + (4 x 10.2) = 220.6 for B: (2 x 80) + (4 x 19) + (16x1) =252 for C: (2x 96.3) + (4 x 3.25) + (16 x 0.45) = 213.4 for D: (2 x 82.5) + (4 x 15.2) + (16 x 2.3) = 263.8 You could have guessed the answer straight away, since CH4 is the heaviest...
  8. techgeek

    A level Biology: Post your doubts here!

    By the resolution of light microscope being 200 nm means that if two objects are closer together than 200 nm, they wouldn't be distinguishable as two, under the light microscope. Why we are unable to see a ribosome under a light microscope is because, it's diameter being 22 nm, is far less than...
  9. techgeek

    CIE coursebook for A2 Biology (4th edition for the 2016 syllabus)

    You are doin a great work indeed! Couldn't you upload for AS topics as well?
  10. techgeek

    A Chinese proverb Literally it means the old man lost his mare but it all turned out to be for...

    A Chinese proverb Literally it means the old man lost his mare but it all turned out to be for the best. Figuratively, it means things might seem going badly but it could turn out to be a blessing in disguise!
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  11. techgeek

    sài wēng shī mǎ, yān zhī fēi fú

    sài wēng shī mǎ, yān zhī fēi fú
  12. techgeek

    Want to study outside pk

    It depends on the requirements of the universities. First, you need to start with finding a suitable university, which offers the field you are interested in to graduate, then see what they require you to have. Most of the universities, especially the European, ask for a Tofel or IELTS as well...
  13. techgeek

    I thought everybody had a wall but this shows me some people don't have so they use others! :D :p

    I thought everybody had a wall but this shows me some people don't have so they use others! :D :p
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  14. techgeek

    Iraday Jin k pukhta hon , nazar jin ki Khuda per ho Talatam khaiz mojoon say, wo ghabraya nahi...

    Iraday Jin k pukhta hon , nazar jin ki Khuda per ho Talatam khaiz mojoon say, wo ghabraya nahi kerty...
  15. techgeek

    no..not english. I wanted to take English as well, but well...I didn't...may be after June...

    no..not english. I wanted to take English as well, but well...I didn't...may be after June, I'll take it but right now I'm preparing for Maths, Bio & Chem. wbu?
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  16. techgeek

    yeh

    yeh
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  17. techgeek

    No prob! :)

    No prob! :)
    • techgeek
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  18. techgeek

    "A winner is a dreamer who never gives up"---Nelson Mandela

    "A winner is a dreamer who never gives up"---Nelson Mandela
  19. techgeek

    Anytime :)

    Anytime :)
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  20. techgeek

    It costs nothing to build a castle in the air, so let's make a big one!

    It costs nothing to build a castle in the air, so let's make a big one!
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