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  1. krishnapatelzz

    EOCQ for biology ask here

    b
  2. krishnapatelzz

    sdfgh

    sdfgh
  3. krishnapatelzz

    A level Biology: Post your doubts here!

    8 days to go ask fast
  4. krishnapatelzz

    Chemistry: Post your doubts here!

    exams oveeeeeeeeeeeeeer
  5. krishnapatelzz

    Chemistry: Post your doubts here!

    which oxide are you talking about Y or Z
  6. krishnapatelzz

    Chemistry: Post your doubts here!

    see sodium hydroxide reacts with carboxylic acid forming COONA there are 3 COOH group so there will be 3 NA and the 3 hydrogen will come out
  7. krishnapatelzz

    Chemistry: Post your doubts here!

    answer to 29 is first write the balanced equation c6h8o7 + 3NAOH gives c6h5o7na3 + 3h2o then find the mols of 3NAOH that is:- 3x0.005 = 0.015 mol now we will calculate volume that is equal to mol divided by concentration 0.015/0.4 = 0.0375dm3 0.0375dm3=37.5cm3 hope you understand if any...
  8. krishnapatelzz

    Chemistry: Post your doubts here!

    26 Use of the Data Booklet is relevant to this question. 2.40g of propan-2-ol were mixed with excess acidified potassium dichromate(VI). The reaction mixture was then boiled under reflux for twenty minutes. The organic product was then collected by distillation. The yield of product was 75.0%...
  9. krishnapatelzz

    Chemistry: Post your doubts here!

    why the answer is c and not d :/
  10. krishnapatelzz

    whats going on

    whats going on
  11. krishnapatelzz

    Retake AS in 2016?? (OLD SYLLABUS)

    agreed with you
  12. krishnapatelzz

    How was 9702_w15_qp_34?

    gooood :LOL::LOL: (krishna r patel):D:D:ROFLMAO: `but did not get time to complete
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