Molecules are always moving. Some molecules move faster than others; . . . . . . is a measure of their average velocity of movement.

  • A
    Density
  • B
    Polarity
  • C
    Electronegativity
  • D
    Temperature

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Which one of the following is an antioxidant vitamin?

Which of the following vitamins contains an isoprene unit?

Match the following columns:
Column-$I$ (Polymer) Column-$II$ (Bond Name)
$P$. Polysaccharide $I$. Ester bond
$Q$. Protein $II$. Peptide bond
$R$. Polynucleotide $III$. Glycosidic bond
$S$. Triglyceride $IV$. Phosphodiester bond

Which of the following pairs is mismatched?

Complete the following analogy-type questions:
$(i)$ Plant : Starch :: Mammal : .......
$(ii)$ Amino acid : Protein :: Nucleotide : ............

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