Question

1. Is air a pure substance or Mixture?
Justify
2. You must have seen brass statues
in museums and places of worship.
Brass is an alloy made up of approx.
30% zinc and 70% copper. Is Brass
a pure substance or a mixture or
compound?​

Answer 1

Answer:

mixture

Explanation:

it contains many elements :nitrogen,carbon,oxygen

Answer 2

Explanation:

1. Air is the mixture of substance. The air is made up of oxygen, nitrogen, carbon dioxide, water vapours, hydrogen and rare gas.

Hence the air is not as single component. The many component exist in air. They are also corrupted with pollutants and dust particles.

2. The brass is 30% zinc and 70% of copper. This makes the brass as alloy and hence this alloy is best is used widely in museum statues and other centers.

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Is air a pure substance or mixture justify

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