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Set 11 of 11 · Questions 301-311 of 311

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NEET Chemistry · Some Basic Concepts of Chemistry · Set 11 (Q301-311)

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  1. 301.
    of an optically active -amino acid is treated with at of nitrogen was at STP is evolved. A sample of protein has of this amino acid by mass. The molar mass of the protein is
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  2. 302.
    Which of the following sets of components form homogeneous mixture?
    1. (1)Phenol + Water
    2. (2)Sugar + Benzene
    3. (3)Silver chloride + Water
    4. (4)Ethyl alcohol + Water
  3. 303.
    Which of the following contains only one element
    1. (1)Marble
    2. (2)Diamond
    3. (3)Glass
    4. (4)Sand
  4. 304.
    10 of hydrogen and 64 of oxygen were filled in a steel vessel and exploded. Amount of water produced in this reaction will be
    1. (1)3 mol
    2. (2)4 mol
    3. (3)1 mol
    4. (4)2 mol
  5. 305.
    Which one of the following is not an element
    1. (1)Diamond
    2. (2)Graphite
    3. (3)Silica
    4. (4)Ozone
  6. 306.
    In known elements, the maximum number is of
    1. (1)Metals
    2. (2)Non-metals
    3. (3)Metalloids
    4. (4)None of these
  7. 307.
    Suppose the mass of an object has been determined to be 14.5678 g . If the accuracy of the analytical balance used is 0.0001 g, this means that the actual mass of the object is
    1. (1)14.5678 g
    2. (2)14.5677 g
    3. (3)14.5679 g
    4. (4)between 14.5677 g and 14.5679 g
  8. 308.
    The number of moles of methane required to produce after complete combustion is : (Given molar mass of methane in )
    1. (1)0.35
    2. (2)0.5
    3. (3)0.75
    4. (4)0.25
  9. 309.
    One atmosphere is equal to
    1. (1)101.325 K pa
    2. (2)1013.25 K pa
    3. (3)Nm
    4. (4)None of these
  10. 310.
    What is the SI unit of density?
    1. (1)
    2. (2)
    3. (3)
    4. (4)
  11. 311.
    Difference in density is the basis of
    1. (1)Ultrafiltration
    2. (2)Molecular sieving
    3. (3)Gravity Separation
    4. (4)Molecular attraction