Simun Mishra posted an Question
September 01, 2020 • 18:32 pm 30 points
  • IIT JAM
  • Chemistry (CY)

Here how to know in which case what happens ?

2 Answer(s) Answer Now
  • 0 Likes
  • 4 Comments
  • 0 Shares
  • comment-profile-img>
    Dinesh khalmaniya 1 best-answer

    in case of oxidation of Toluene, CrO3/Anhydride gives aldehyde while CrO3/ Acid gives acid

  • comment-profile-img>
    Dinesh khalmaniya 1 Best Answer

    simun, learn the function of each reagent. CrO3 oxidised active position just like benzylic and allylic

    eduncle-logo-app

    no sir I m not asking that I asking like ac20 and in 2nd acoh like different things are their

    eduncle-logo-app

    so I m asking when cro3 and acoh react with a compound give only acid or not ?

    eduncle-logo-app

    yes, CrO3 /Acetic acid gives acid

    eduncle-logo-app

    CrO3/Acetic anhydride gives aldehyde

    eduncle-logo-app

    it is fixed na sir means it will give same result also in other cases

    eduncle-logo-app

    yes yes

    eduncle-logo-app

    and sir only in 2 active side na benzilic and Allylic

    eduncle-logo-app

    yes

    eduncle-logo-app

    but sir pls check the 3rd example here ketone form na

    eduncle-logo-app

    wait

    eduncle-logo-app

    ok sir

    eduncle-logo-app

    but here also active benzylic position is pressnt

    eduncle-logo-app

    but sir ac2o give aldehyde na

    eduncle-logo-app

    yes

    eduncle-logo-app

    so why here ketone form

    eduncle-logo-app

    😁😁let me explain

    eduncle-logo-app

    ok sir

    eduncle-logo-app

    check it

    eduncle-logo-app

    kuch smjh me aya

    eduncle-logo-app

    I know about the active position sir I m asking in one case ac2o give aldehyde and in another case give ketone ,?why

    eduncle-logo-app

    because jha pr oxygen jayega, wha O add krna he

    eduncle-logo-app

    O active position pr jayega

    eduncle-logo-app

    apko to yh delhna he ki active position pr C=O bnana he

    eduncle-logo-app

    agar chain 1 carbon ki he to hmesa aldehyde jbki 1 se jad carbon ki he to hmesa ketone bnega

    eduncle-logo-app

    yes sir I got it know

    eduncle-logo-app

    sir yeh reagent chemistry bahut confusing he🤕🤕

    eduncle-logo-app

    vo to he, pr practice jruri he

    eduncle-logo-app

    yes sir apke explanation k baja se kuch samajh mein araha he barna ye tho 🤪

whatsapp-btn

Do You Want Better RANK in Your Exam?

Start Your Preparations with Eduncle’s FREE Study Material

  • Updated Syllabus, Paper Pattern & Full Exam Details
  • Sample Theory of Most Important Topic
  • Model Test Paper with Detailed Solutions
  • Last 5 Years Question Papers & Answers