Discuss how acid rain occurs due to emission of smoke from vehicles and industries?

Short/Brief Note

Rain becomes acidic in nature due to the presence of certain pollutants in the air released by cars and industrial processes.
Acid rain is caused by emissions of sulphur dioxide and nitrogen oxide which react with the water molecules in the atmosphere.

shaalaa.com

Is there an error in this question or solution?

Chapter 10: Changes around us - Exercises [Page 112]

Chapter 10 Changes around us
Exercises | Q VII. 3. | Page 112

Define chemical reaction.

Fill in the blank:
The substances formed as a result of a chemical reaction are called _______

Complete the statement by filling the gaps using appropriate term from the terms given in the bracket.

(slow, coloured, arrow, fast, smell, milky, physical, product, chemical, reactant, covalent, ionic, octet, duplet, exchange, sharing, equality sign)

The white particles of baking soda disappear when put in lemon juice. This means that it is a ______ change.

Explain by writing a word equation.

Respiration is a chemical change.

Give reason for the following:

Molybdenum is used in the manufacture of ammonia.

Name: Two carbonates do not produce carbon dioxide on heating.

______ is not a chemical change.

If you leave a piece of iron in the open for a few days, it acquires a film of brownish substance, called rust.

Do you think formation of rust from iron is a chemical change?

Photosynthesis is a chemical charge. Justify your answer.

Write the effects of chemical reactions.