Question

1. Give one example each of sol and gel.
3. Write the IUPAC name of the compound.
CH3-CH - CH2
NH2
5. Some liquids on mixing form ‘azeotropes'. What are ‘azeotropes'?
6. Arrange the following in increasing order of basic strength.
C6H5NH2, C6H5NHCH3, CH-CH2NH2
7. Which component of starch is a branched polymer of a-glucose and insoluble in water?
9. State Henry's law. What is the effect of temperature on the solubility of a gas in a liquid?
10. Define the following terms:
(i) Pseudo first order reaction
(ii) Half life period of reaction (12)
11. Write the principle behind the following methods of refining:
(i) Hydraulic washing
(ii) Vapour phase refining
22. (a) Draw the structures of the following:
(i) XeF2
(ii) BrF3
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Answer 1

1. Example of sol is milk of magnesia and gel is jelly