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When does a chemical reaction takes place in a substance?

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Write some uses of nitric acid.

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Write about the resources of oxide of nitrogen?

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What are sources of carbon monooxide ?

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Write the effects of acid rain

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Which salt can reduce the acidity in the stomach?

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What are the effectskj of Deforstation on the environment ?

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How can we measure the pH of a solution?

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When did law of conservation of mass was put forward?

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Write some properties of salts.

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Tell about some important exothermic reactions in daily life?

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Define neutral solution

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What is greenhouse?

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Is soda water acidic or basic?

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What do you know about sulphur dioxide?

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Write some properties of acid

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Describe the role of different salts in industry

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Define air pollutants?

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What are the harms of sulphur dioxide in human body?

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Write about carbon monoxide gas ?

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