Practice test

Periodic table - Test Set 5

Review 20 exam-focused questions with detailed explanations, then start the interactive test when you are ready.

20 questions

Questions and explanations

  1. Question 1

    Arrange the following elements in order of their increasing nonmetal properties: Li, O, C, Be, F
    1. F
    2. Li< Be< C< O< F
    3. F
    4. F
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  2. Question 2

    Which of the following elements is more electronegative?
    1. Al
    2. Cl
    3. S
    4. P
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  3. Question 3

    If an element has an atomic number of 20, its chemical properties will be similar to which of the following elements?
    1. B (5)
    2. Fe (26)
    3. Be (4)
    4. Sc (21)
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  4. Question 4

    Glucose molecule breaks down into _____.
    1. Cytoplasm
    2. Pyruvic acid
    3. Lactic acid
    4. Mitochondria
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  5. Question 5

    With the increase in atomic number in period
    1. Metallic character increases
    2. Chemical reactivity decreases
    3. Metallic character decreases
    4. Chemical reactivity increases
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  6. Question 6

    Which of the following options has the highest melting point and boiling point?
    1. Lithium
    2. Phosphorus
    3. Carbon
    4. Argon
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  7. Question 7

    The atomic numbers of the four basic elements of a period are 11, 13, 16 and 17. In the modern periodic table, atomic number of the most metallic element of these will be ____________.
    1. 9
    2. 13
    3. 32
    4. 11
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  8. Question 8

    Which of the following elements was the last element in Newland's law of octaves?
    1. bromine
    2. hydrogen
    3. thorium
    4. rubidium
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  9. Question 9

    Iron that resembles cobalt and nickel in properties has been kept far away from these elements. Which was one of its shortcomings -
    1. Modern Periodic Table
    2. Octaves law of Newlands
    3. Doberiner's Triad
    4. Mendeleev's Periodic Table
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  10. Question 10

    According to Newlands' law of octaves, how many elements exist in nature?
    1. 56
    2. 66
    3. 55
    4. 65
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  11. Question 11

    Newland considered that only ______ elements were present in nature?
    1. 46
    2. 56
    3. 64
    4. 65
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  12. Question 12

    Who discovered that the properties of every eighth element are the same as the first element?
    1. Newland
    2. Mojle
    3. Doberiner
    4. Mendeleev
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  13. Question 13

    According to Newlands rule of octaves, ________, Which resembles cobalt and nickel in properties, is kept far away from these elements.
    1. Al
    2. Fe
    3. Mn
    4. Mg
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  14. Question 14

    According to Newlands' law of octaves, 'iron', which resembles ______ and _______ in properties, is kept far away from these elements -
    1. Co and Ni
    2. Ni and Mn
    3. Co and Cu
    4. Cu and Ni
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  15. Question 15

    In ______________ Newlands arranged the known elements according to the increasing order of atomic masses and found that the properties of each eighth element are similar to the properties of the first element.
    1. 1860
    2. 1964
    3. 1844
    4. 1864
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  16. Question 16

    Name the German chemist who grouped elements into triads in 1817.
    1. John Newlands
    2. Henry Moseley
    3. Johann Wolfgang Dobereiner
    4. Dmitri Ivanovich Mendeleev
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  17. Question 17

    Which one of the following triads represents the Dobereiner triad?
    1. Li, Na, K
    2. Li, Ca, C1
    3. Na, Sr, Br
    4. Li, K, Na
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  18. Question 18

    The Law of Triad was given by
    1. Henry Moseley
    2. John Newlands
    3. D.I. Mendeleev
    4. J.W. Dobereiner
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  19. Question 19

    Which of the following is the third member of the Dobereiner's triad, which also includes lithium and sodium?
    1. Potassium
    2. Boron
    3. Barium
    4. Hydrogen
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  20. Question 20

    What did Dobereiner identify and name a group of three elements?
    1. Triad (Trik)
    2. Threes
    3. Tetrad
    4. Tritium
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