Classify Water. Also give a balanced equation to prepare it.

One Line Answer

Water → neutral oxide

2H₂+ O₂ → 2H₂O.

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Chapter 7: Air and Atmosphere - Additional questions 3

Chapter 7 Air and Atmosphere
Additional questions 3 | Q 9.01

Describe a simple experiment to show that l/5th of air is oxygen.

Write ‘True’ or ‘False’ in front of following statement.

Water containing dissolved carbon dioxide can dissolve marble.

Give reason:

When water is heated, we see bubbles rising up.

Fill in the blank

Green plants need ________________to prepare food.

Nitrogen is used in the food packaging industry because it _____.

_____ gas turns lime water milky.

Match the following:

“Air is not an elementary substance, but a composition”. Why?

A ______ gas that is used to remove carbon impurities from the steel.

Oxygen is used to oxidize ______.