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Chemistry In Everyday Life Model Question Paper

12th Standard EM

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Chemistry

Time : 01:00:00 Hrs
Total Marks : 30
    5 x 1 = 5
  1. Dettol is the mixture of

    (a)

    Chloroxylenol and bithionol

    (b)

    Chloroxylenol and \(\alpha\)-terpineol

    (c)

    phenol and iodine

    (d)

    terpineol and bithionol

  2. Non stick cook wares generally have a coating of a polymer, whose monomer is

    (a)

    ethane

    (b)

    prop-2-enenitrile

    (c)

    chloroethene

    (d)

    1,1,2,2-tetrafluoroethane

  3. Mental diseases like schizophrenia are treated using _______ drugs.

    (a)

    tranquilizers

    (b)

    antacid

    (c)

    opioids

    (d)

    NSAID

  4. ________ is an antipyretic.

    (a)

    quinine

    (b)

    paracetomal

    (c)

    cephalosporins

    (d)

    brompheniramine

  5. The monomer unit of natural rubber is _________

    (a)

    C is iso prene

    (b)

    trans isoprene

    (c)

    orlon

    (d)

    Capro lactam

  6. 1 x 1 = 1
  7. Which of the following statement is correct?
    a) Some tranquillisers function by inhibiting the enzymes which catalyse the degradation of noradrenaline.
    b) Tranquillisers are narcotic drugs.
    c) Tranquillisers are chemical compounds that do not affect the message teansfer from nerve to receptor
    d) Tranquillisers are chemical compouds that can relieve pair and fever.

    ()

    Sometranquillisers function by inhibiting the enzymes which catalyse the degradation of noradrenaline

  8. 1 x 2 = 2
  9. Assertion: Detergents are superior to soaps.
    Reason: Higher the TFM better is the quality of soap
    a) (A) and (R) are true and (R) is the correct explanation of (A)
    b) Both (A) and (R) are true but (R) does not explain (A)
    c) (A) is true but (R) is false
    d) Both (A) and (R) are false

  10. 1 x 2 = 2
  11. Which of the following statement is not true about enzyme inhibitors?
    a) Inhibit the catalytic activity of the enzyme.
    b) Prevent the binding of substrate
    c) Generally a strong covalent bond is formed between an inhibioue and enzyme
    d) Inhibitors can be competitive or non-competitive

  12. 2 x 2 = 4
  13. Name one substance which can act as both analgesic and antiphyretic

  14. Write a short note on Antimicrobials.

  15. 2 x 3 = 6
  16. Write the structural formula of aspirin.

  17. Give examples for (i) addition polymer, (ii) Synthetic rubbers, (iii) Condensation polymers, (iv) formaldehyde resins.

  18. 2 x 5 = 10
  19. What are bio degradable polymers? Give examples.

  20. Explain the prepareation of Bakelite and Give its use.

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