Practice test

Metals, non metals and metallurgy - Test Set 3

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

    SSC CGL 2018
    What is the dominant chemical present in detergent powder?
    1. Hydrochloric acid
    2. Sodium carbonate
    3. Calcium carbonate
    4. Sodium alkyl sulphate
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  2. Question 2

    Asst. Comm. 2019
    Which one of the following is used for water softening?
    1. Mg(HCO₃)₂
    2. Na₃PO₄
    3. Na₆P₆O₁₈
    4. Na₂HPO₄
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  3. Question 3

    SSC CHSL (10+2) 2017
    Sodium calcium silicate is called_________.
    1. Hard glass
    2. Borosilicate glass
    3. Soft glass
    4. Jena glass
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  4. Question 4

    Which of the following elements has the lowest melting point?
    1. Sodium
    2. Tin
    3. Radon
    4. Radium
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  5. Question 5

    Sodium is present in abundant quantities in earth’s crust. Why sodium never occurs as free element in nature?
    1. It is highly reactive element
    2. It is at the bottom of the reactivity series
    3. It forms oxide with oxygen present in air
    4. None of the above
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  6. Question 6

    Sodium vapour lamps glow with yellow colour. This is due to
    1. Sublimation of sodium to emit yellow colour
    2. The emission of excess energy absorbed by sodium atoms, in the yellow region of the spectrum
    3. The low ionisation energy of sodium
    4. Its ability to absorb all other colours except yellow
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  7. Question 7

    Consider the following statements:
    I. Baking soda is used in fire extinguishers.
    II. Quicklime is used in the manufacture of glass.
    III. Gypsum is used in the manufacture of plaster of Paris.
    Which of the statement(s) given above is/are correct?
    1. I and II
    2. II and III
    3. Only I
    4. I, II and III
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  8. Question 8

    Which one among the following metals is used in fireworks to make a brilliant white light?
    1. Sodium
    2. Magnesium
    3. Aluminium
    4. Silver
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  9. Question 9

    Which of the following cannot be beaten into Sheets?
    1. Gold
    2. Silver
    3. Potassium
    4. Aluminium
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  10. Question 10

    Chalk and marble are different forms of
    1. Calcium hydrogen carbonate
    2. Calcium carbonate
    3. Calcium acetate
    4. Sodium carbonate
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  11. Question 11

    Chhattisgarh P.C.S. (Pre) 2019
    ‘Plaster of Paris’ is made up of
    1. Marble
    2. Cement
    3. Gypsum
    4. Limestone
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  12. Question 12

    Tooth enamel is made up of which one of the following calcium compounds?
    1. Calcium carbonate
    2. Calcium sulphate
    3. Calcium hydroxide
    4. Calcium phosphate
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  13. Question 13

    What is the chemical name of slaked lime?
    1. Calcium nitrate
    2. Sodium chloride
    3. Calcium chloride
    4. Calcium hydroxide
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  14. Question 14

    Which one of the following is the chemical formula of gypsum?
    1. CaSO₄ · 2H₂O
    2. Ca₂SiO₄
    3. 2CaSO₄ · H₂O
    4. CaSO₄
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  15. Question 15

    Which of the following is slaked lime?
    1. Ca(OH)₂
    2. CaO
    3. CaCO₃
    4. CaCl₂
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  16. Question 16

    Which one of the following materials contains calcium?
    1. China clay
    2. Corundum
    3. Gypsum
    4. Talc
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  17. Question 17

    Calcium sulphate dihydrate is commonly known as _______.
    1. Gypsum
    2. Glass
    3. Asbestos
    4. Limestone
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  18. Question 18

    The chemical name of marble which is frequently used in house construction and idols preparations is
    1. Calcium carbonate
    2. Calcium chloride
    3. Calcium hydroxide
    4. Calcium bicarbonate
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  19. Question 19

    UPPCS 2015
    Which of the following salt is to be found in maximum amount in the human bones?
    1. Magnesium chloride
    2. Calcium carbonate
    3. Calcium phosphate
    4. Sodium chloride
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  20. Question 20

    Which one among the following is the chemical formula of gypsum, which is an ingredient of cement?
    1. Ca₂SiO₄
    2. CaSO₄ · 2H₂O
    3. CaO
    4. CaSO₄ · 3H₂O
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