Q8 of 30 Page 1

What are three types of RNA molecules which perform different functions?

Three types of RNA molecules which perform different functions are:
(i) Messenger RNA (m-RNA)
(ii) Transfer RNA (t-RNA)
(iii) Ribosomal RNA (r-RNA)


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6

Write the structure of 3-methylbutanal.

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Arrange the following in increasing order of their basic strength in aqueous solution:

CH3.NH2, (CH3)3N, (CH3)2NH


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18 g of glucose, C6H12O6 (Molar mass = 180 g mol-1) is dissolved in 1 kg of water in a sauce pan. At what temperature will this solution boil? (Kb for water =0.52 K kg mol-1, boiling point of pure water =373.15K)

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The conductivity of 0.20 M solution of KCl at 298 K is 0.025 Scm-1. Calculate its molar conductivity.