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Search results

  1. AhsanAfzal

    Biology; Chemistry; Physics: Post your doubts here!

    with moist blue litmus chlorine first makes it red then bleaches it, right?
  2. AhsanAfzal

    Biology; Chemistry; Physics: Post your doubts here!

    Why is lid placed on the crucible when making magnesium oxide?
  3. AhsanAfzal

    Chemistry ATP Tips

    Acidic Oxide + Air ---> Acid pls explain this Saad Mughal
  4. AhsanAfzal

    Chemistry ATP Tips

    no problem. good job btw
  5. AhsanAfzal

    Biology; Chemistry; Physics: Post your doubts here!

    but my answer should be right too...
  6. AhsanAfzal

    Biology; Chemistry; Physics: Post your doubts here!

    dehydration of alcohol is to make alkenes from from alcohol in presence of h2So4 and 180 Celsius temp and water is also a product
  7. AhsanAfzal

    Biology; Chemistry; Physics: Post your doubts here!

    in the pipette question the mark which shows 25 cm3 should be on top part. right?(in imran merchant paper)
  8. AhsanAfzal

    Biology; Chemistry; Physics: Post your doubts here!

  9. AhsanAfzal

    Biology; Chemistry; Physics: Post your doubts here!

    violent reaction and sodium hydroxide with sodium and rusting with iron
  10. AhsanAfzal

    Biology; Chemistry; Physics: Post your doubts here!

    are there any chemistry atp notes? robinhoodmustafa Suchal Riaz
  11. AhsanAfzal

    Biology; Chemistry; Physics: Post your doubts here!

    so u mean bitumen will give more temperature rise but will also take more heat to ignite?robinhoodmustafa
  12. AhsanAfzal

    Biology; Chemistry; Physics: Post your doubts here!

    so why petrol is better than bitumen? Suchal Riaz Suchal Riaz
  13. AhsanAfzal

    Biology; Chemistry; Physics: Post your doubts here!

    part b. as the size of molecules increases the temperature rise done when it is burned increases or decreases? pls explain
  14. AhsanAfzal

    Biology; Chemistry; Physics: Post your doubts here!

    one more question. will we get periodic table in atp?
  15. AhsanAfzal

    Biology; Chemistry; Physics: Post your doubts here!

    thnks :D
  16. AhsanAfzal

    Biology; Chemistry; Physics: Post your doubts here!

    but wouldnt fe3+ and fe2+ colours will come in the solution?
  17. AhsanAfzal

    Biology; Chemistry; Physics: Post your doubts here!

    explain part (d)
  18. AhsanAfzal

    Biology; Chemistry; Physics: Post your doubts here!

    are there any answers for this imran merchant paper?
  19. AhsanAfzal

    Biology; Chemistry; Physics: Post your doubts here!

    alright
  20. AhsanAfzal

    Biology; Chemistry; Physics: Post your doubts here!

    the answer is A as we read meniscus from bottom. am i right?
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