Jagran Josh Logo
  1. Home
  2. |  
  3. CBSE Board|  

General Principles & Processes of Isolation of Elements -CBSE Class 12th NCERT Solution

Jul 30, 2013 15:23 IST

    Get, detailed solutions to the questions of the chapter General Principles and Processes of Isolation of Elements from NCERT textbooks. The objective is to helping students regarding the pattern of answering the question as per the cbse latest marking scheme.Cbse.jagranjosh.com provided you NCERT solutions for classes 12th math and science subjects.

    image

    Some questions of this chapter are given here

    Q. Out of C and CO, which is a better reducing agent at 673 K?

    Answer

    At 673 K, the value of free enthalpy change for CO to convert into carbon monoxide that is Δ(CO,CO2)  less than that of ΔG c,co . Therefore, CO can be oxidised more easily to carbon dioxide than Carbon to Carbon monoxide. Hence, CO is a better reducing agent than C at 673 K.

    Q. Name the common elements present in the anode mud in electrolytic refining ofcopper. Why are they so present?

    Answer

    In electrolytic refining of copper, the common elements present in anode mud are: -

    1. Selenium
    2. Tellurium
    3. Silver
    4. Gold
    5. Platinum, and
    6. Antimony

    image

    These elements are very less reactive. Thus, they are not affected during the purification process. Hence, settle dow

    To Get the Complete Solved Chapter, Click Here

    DISCLAIMER: JPL and its affiliates shall have no liability for any views, thoughts and comments expressed on this article.

    Latest Videos

    Register to get FREE updates

      All Fields Mandatory
    • (Ex:9123456789)
    • Please Select Your Interest
    • Please specify

    • ajax-loader
    • A verifcation code has been sent to
      your mobile number

      Please enter the verification code below

    Newsletter Signup
    Follow us on
    This website uses cookie or similar technologies, to enhance your browsing experience and provide personalised recommendations. By continuing to use our website, you agree to our Privacy Policy and Cookie Policy. OK
    X

    Register to view Complete PDF