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11th Standard English Medium Chemistry Subject Basic Concepts of Chemistry and Chemical Calculations Book Back 3 Mark Questions with Solution Part - I updated Book back Questions Question Bank Software May-13 , 2022

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11th Standard English Medium Chemistry Subject Basic Concepts of Chemistry and Chemical Calculations Book Back 3 Mark Questions with Solution Part - I updated Book back Questions

11th Standard English Medium Chemistry Subject Basic Concepts of Chemistry and Chemical Calculations Book Back 3 Mark Questions with Solution Part - I

11th Standard

    Reg.No. :
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Chemistry

Time : 00:30:00 Hrs
Total Marks : 15

    Part I

    5 x 3 = 15

  1. Mass of one atom of an element is 6.645 x 10-23g. How many moles of element are there in 0.320 kg.

  2. What is the empirical formula of the following?
    i) Fructose (C6 H12 O6) Found in honey
    ii) Caffeine  (C8 H10 N4 O2) a substance found in tea and Coffee 

  3. Calculate the empirical and molecular formula of a compound containing 76.6% carbon, 6.38 % hydrogen and rest oxygen its vapour density is 47.

  4. How many moles of hydrogen is required to produce 10 moles of ammonia ?

  5. How much volume of chlorine is required to form 11.2 L of HCI at 273 K and 1 atm pressure?

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