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11th Standard English Medium Chemistry Subject Solutions Creative 1 Mark Questions with Solution Part - I

11th Standard

    Reg.No. :
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Chemistry

Time : 00:30:00 Hrs
Total Marks : 5
    5 x 1 = 5
  1. The tanks used by scuba divers are filled with air diluted with 11.7% He ___________

    (a)

    56.2% N2 and 32.1% O2

    (b)

    56.2% O2 and 32.1% N2

    (c)

    50.2% N2 and 38.1%O2

    (d)

    50.2% O2 and 38.1% N2

  2. The blocking of capillaires due to sudden release of bubbles of N2 gas in blood is known as ______

    (a)

    bends

    (b)

    blends

    (c)

    mends

    (d)

    all of these

  3. Which of the following gas should have maximum value for kH?

    (a)

    He

    (b)

    H2

    (c)

    N2

    (d)

    CO2

  4. The increase in the temperature of the aqueous solution placed in a closed vessel will result in its _________

    (a)

    molarity to increase

    (b)

    molarity to decrease

    (c)

    mole fraction to increase

    (d)

    mass % increase

  5. In a binary solution __________

    (a)

    solvent may be liquid

    (b)

    solvent may be solid

    (c)

    solute may be gas

    (d)

    any of these

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