General Principles & Processes of Isolation of Elements

Subject matter experts of JagranJosh have developed chapter wise practice questions of Class 12th as per the relevancy of the chapter in the CBSE board exam. This practice set contains 10 questions with detailed explanations on “Chapter: General Principles and Processes of Isolation of Elements” of Chemistry.

  • Q1. ______ is used to make interpretations and predict which element will suit as the reducing agent for a given metal oxide:

    Show Solution Report Error
    Please wait...
  • Q2.______ is an ore of aluminum:

    Show Solution Report Error
    Please wait...
  • Q3.Drying agent which reacts with CO2 and removes water vapours is:

    Show Solution Report Error
    Please wait...
  • Q4.Highly electropositive metals cannot be extracted by carbon reduction process, because these:

    Show Solution Report Error
    Please wait...
  • Q5.Which metal cannot be obtained by electrolysis of their aqueous solution:

    Show Solution Report Error
    Please wait...
  • Q6.Froth Floatation method may be used to increase the concentration of mineral in:

    Show Solution Report Error
    Please wait...
  • Q7.Which of the following can be used to give above 3000° temperature:

    Show Solution Report Error
    Please wait...