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  1. M

    Chemistry: Post your doubts here!

    ACtually first 4 are gasses :p Under standard conditions, from CH4 to C4H10 alkanes are gaseous; from C5H12 to C17H36 they are liquids; and after C18H38 they are solids
  2. M

    Chemistry: Post your doubts here!

    The double Bond Come Onn...
  3. M

    Chemistry: Post your doubts here!

    Best yeild mean produces Only 2-chloropropane, No other Chloropropanes. A. will give you both monochloro propanes and a bunch of di- and trichloro as well. B. will give NO REACTION C. is correct, the desired compound is the sole product. D. would give more 2-propanol than 2-chloropropane. (if...
  4. M

    Chemistry: Post your doubts here!

    Hot one Produces Ketone and/or Carboxillic acid!
  5. M

    Chemistry: Post your doubts here!

    Equation for Q22 C Propan-2-0l + SOCl2 gives 2-chloropropane + SO2 +HCL
  6. M

    Chemistry: Post your doubts here!

    Q30:-(A) Because NaOH will Hydrolyze Ethanenitrile and would produce a salt of Ethanoic acid. (Not ethanoic Acid) :)
  7. M

    Chemistry: Post your doubts here!

    Alcohol + Stable Salt --> Nothing
  8. M

    Chemistry: Post your doubts here!

    First 5 alkanes are gas :P!
  9. M

    Chemistry: Post your doubts here!

    Q29:- (D) Because Cold one Breaks double Bond and Forms Diol (two OH groups added ) giving two chiral centers. And with Hot KMnO4 it disrupts the double bind completely which causes this compound to lose one chiral center!
  10. M

    Chemistry: Post your doubts here!

    Q22:-(C) bcz best yeild only in adddition reaction, which is with alcohol! :)
  11. M

    Chemistry: Post your doubts here!

    Option D has Propane is Liquid state which is Gas :P
  12. M

    Chemistry: Post your doubts here!

    No the structural one is Actually: CH(Br)=CH(Br)
  13. M

    Chemistry: Post your doubts here!

    Q8:-(C) In ethalpy changes All the element should be in standard states. And H should be in H2 form. only option with this is C!
  14. M

    Chemistry: Post your doubts here!

    One Cis isomer, One trans isomer. And one structural isomer which is 1,2-dibromoethene! :)
  15. M

    A level Biology: Post your doubts here!

    Q6 :- (A)The question asks for greatest mass of Non- Reducing sugar, which means the difference between Before and after Hydrolysis must be greatest, which is in A! Q11:-(A) Triglycrides dont have Hydrogen bonds, So Not D.Cellulose has Hydrogen bonds so Not B either. Collagen is helical in...
  16. M

    Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w12_qp_13.pdf Q11 and 26 Plz Thanks :) Thought blocker
  17. M

    Physics: Post your doubts here!

    :cool: Welcome
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