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Quiz by Sonam Yangki

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43 questions
Show answers
  • Q1

    The given picture is based on which gas law

    Question Image

    Charles' law

    Boyle's law

    Ideal gas law

    Avagadro's law

    60s
  • Q2

    A marshmallow is put in a syringe to show a short experiment.

    When the syringe piston is pulled out, the marshmallow size increases, and when the syringe piston is pushed in, the marshmallow size decreases. The given experiment is based on ________________

    Charles' law

    Ideal gas equation

    Boyle's law

    Avogadro's law

    60s
  • Q3

    Which one is the correct equation for Charles' law?

    V1T1 = V2T2

    V1/T2 = V2/T1

    V1/T1 = V2/T2

    60s
  • Q4

    In the equation PV = nRT, the value of R equals to

    0.0821Latm/molK

    22.4L

    6.023*10^23

    60s
  • Q5

    In PV = wRT/m, w and m refers to,

    w: weight, m: mass

    w: mass, m: molecular mass

    60s
  • Q6

    1 mole in terms of volume is equal to 24.2 L

    false
    true
    True or False
    60s
  • Q7

    The relative molecular mass is obtained by comparing the mass of the element with _______________ element.

    Users enter free text
    Type an Answer
    60s
  • Q8

    The percentage composition of Carbon in C6H12O6 equals to

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    Type an Answer
    120s
  • Q9

    If the empirical formula of the compound is CH2O, the possible molecular formula can be

    CH2O2

    C2H2O2

    C3H6O2

    C2H4O

    60s
  • Q10

    Molecular formula can be calculated by using formula

    n * Empirical formula

    2 * Empirical formula

    Molecular formula/ Empirical formula

    60s
  • Q11

    Molecular mass = 2 * vapor density

    true
    false
    True or False
    60s
  • Q12

    All the minerals are ore.

    false
    true
    True or False
    60s
  • Q13

    Which of the following is the correct order of metal extraction?

    Refining of metals - Concentration of ore -  Reduction to metals - Dressing of ore

     Reduction to metals - Concentration of ore - Dressing of ore - Refining of metals

    Concentration of ore - Refining of metals - Dressing of ore -  Reduction to metals

    Dressing of ore - Concentration of ore - Reduction to metals - Refining of metals

    60s
  • Q14

    Roasting is a process where 1. ________________ is converted to 2. ________________

    1. carbonate     2. oxide

    1. oxide     2. carbonate 

    1. sulphide     2. oxide

    1. oxide     2. sulphide

    60s
  • Q15

    Roasting takes place in presence of air.

    true
    false
    True or False
    60s

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