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 Multiple Choice QuestionsShort Answer Type

91.

Why are cimetidine and ranitidine better antacids than sodium hydrogencarbonate or magnesium or aluminium hydroxide?

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92.

Can aspartame be used as artifical sweetner by all people. Explain. 


Aspartame cannot be used as artificial sweetener by all people. People with genetic condition known as phenyl ketonuria cannot use it because their metabolism causes accumulation of phenyl pyruvic acid, which is harmful.
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93. Why is use of aspartame is limited to cold food and soft drinks?
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94.

What are artificial sweetening agents? Give two examples.

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95. What problem arises in using alitame as artificial sweetener?
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96. How are synthetic detergents better than soaps? 
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 Multiple Choice QuestionsLong Answer Type

97.

Explain the following terms with suitable examples:
(i) cationic detergents,
(ii) anionic detergents and
(iii) neutral detergents.

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 Multiple Choice QuestionsShort Answer Type

98.

What are biodegradable and non-biodegradable detergents? Give one example of each.

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99.

Why do soaps not work in hard water?

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100.

Can you use soaps and synthetic detergents to check the hardness of water?

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