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  1. Saturation

    Physics MCQs thread.

    I know the answer, but I want to know, why the resultant of the forces acting on the car by the ground, isn't in the direction I showed!
  2. Saturation

    Physics MCQs thread.

    They are both the SAME materials! Young modulus is for each MATERIAL, regardless of shape size, etc. So it is the same!
  3. Saturation

    Physics MCQs thread.

    I really don't have any idea about this qs! please explain in detail! thanks!
  4. Saturation

    Physics MCQs thread.

    Ok, so the obvious answer is B ( since there is a normal contact force and friction) But if the friction is acting backwards, then isn't the actual diagram supposed to be as shown?
  5. Saturation

    Physics MCQs thread.

    Ok, my reason is completely different! The one with the lower constant is kept in the box,cause : Picture this, as you add small amounts of weight, the spring with the lower k will stretch, instead of the higher k. So as we keep adding small masses, which keep increasing in weight, the spring...
  6. Saturation

    how was chem p11...

    THANK YOU! I thought the same too!
  7. Saturation

    how was chem p11...

    Ok, this qs is KILLING ME, what's the pH of CaO qs? ;)
  8. Saturation

    how was chem p11...

    even I got 30
  9. Saturation

    Chemistry MCQ thread...

    This is the process: 2NO + O2 = 2NO2 SO2 + NO2 = SO3 + NO (Notice NO is produced at the end, so it's "acting" like a catalyst)
  10. Saturation

    Chemistry MCQ thread...

    For number 3, ammonia isn't being formed! It's HNO2 (nitrous acid) , which is still dispropotionation!
  11. Saturation

    Chemistry MCQ thread...

    But doesn't the NO2 gas produced react with the MgO?
  12. Saturation

    Chemistry MCQ thread...

    But doesn't the NO2 gas produced react with the MgO?
  13. Saturation

    Chemistry MCQ thread...

    Number 35, I get that MgO and and BaO will form, but won't the MgO formed react with the NO2 (acidic oxide), forming magnesium nitrate? Please explain! The answers B btw. http://www.xtremepapers.me/CIE/Internat ... 7_qp_1.pdf
  14. Saturation

    Chem MCQ qs!

    *BUMP*
  15. Saturation

    Chem MCQ qs!

    http://www.xtremepapers.me/CIE/Internat ... 7_qp_1.pdf Number 35, I get that MgO and and BaO will form, but won't the MgO formed react with the NO2 (acidic oxide), forming magnesium nitrate? Please explain! The answers B btw.
  16. Saturation

    Chemistry MCQ thread...

    Can someone pls explain!? 4 cvalent bonds with sulfur, so that's 8 electrons right?
  17. Saturation

    Chemistry MCQ thread...

    B!
  18. Saturation

    Chemistry MCQ thread...

    When they mean oxidisation, is it FULL or just to an aldehyde?
  19. Saturation

    Chemistry MCQ thread...

    aha, so if they ask which one has intermediate steps (like in a 1,2,3 question) , is it yes for SN2??
  20. Saturation

    Chemistry MCQ thread...

    C right??
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