What happens when Sodium burns in oxygen ? Also give the balanced chemical equation for the reaction.

एका वाक्यात उत्तर

Sodium bums brightly, with a brilliant yellow flame.
4NA+ O₂ → 2Na₂O + heat

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Burning and Combustion

या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?

पाठ 7: Air and Atmosphere - Additional questions 3

पाठ 7 Air and Atmosphere
Additional questions 3 | Q 3.4

A mixture of oxygen and carbon dioxide used for artificial respiration.

What is rust ?

The process by which oxidation of food in our body takes place is

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

Nitrogen is a gaseous non-metal essential for respiration.

State and explain two ways by which air gets polluted in nature.

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

The rust formed on the surface of iron easily crumbles.

Tick (√ ) the most appropriate answer.

Galvanising is the process of coating iron with a layer of molten :

State four ways of preventing rusting.

Describe simple experiments to show the presence of -

oxygen and nitrogen component in air using a bell jar

Give reason for the following:

Combustion and respiration show similarity.