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11th Standard English Medium Chemistry Subject Basic Concepts of Chemistry and Chemical Calculations Book Back 2 Mark Questions with Solution Part - I Question Bank Software Jun-07 , 2021

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11th Standard English Medium Chemistry Subject Basic Concepts of Chemistry and Chemical Calculations Book Back 2 Mark Questions with Solution Part - I

11th Standard English Medium Chemistry Subject Basic Concepts of Chemistry and Chemical Calculations Book Back 2 Mark Questions with Solution Part - I

11th Standard

    Reg.No. :
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Chemistry

Time : 00:30:00 Hrs
Total Marks : 10

    Part I

    5 x 2 = 10

  1. What do you understand by the term mole ?

  2. What do you understand by the term oxidation number ?

  3. Distinguish between oxidation and reduction.

  4. The density of carbon dioxide is equal to 1.965 kgm-3 at 273 K and 1 atm pressure. calculate the molar mass of CO2.

  5. Calculate the average atomic mass of naturally occurring magnesium using the following data.

    Isotope Istopic atomic mass Abundance(%)
    Mg24 23.99 78.99
    Mg25 24.99 10.00
    Mg26 25.98 11.01

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