Question

i) Oxygen is diatomic whereas Ozone is triatomic .
ii) Chemistry has great economic importance in our daily life .
iii) Homogeneous solution have uniform composition .
iv) Cotton jute and so many others natural fibres are available,still we depend on fibres like nylon etc. v) People use cosmetics. [give reason

Answer 1

Answer:

Q1

Oxygen molecules are made up of two atoms of oxygen, so it is a diatomic molecule. Whereas ozone is made up of three atoms of oxygen so it is a triatomic molecule.

Q2

Chemistry is important in everyday life because: Everything is made of chemicals. Many of the changes you observe in the world around you are caused by chemical reactions. Examples include leaves changing colors, cooking food and getting yourself clean.

Q3

Often it is easy to confuse a homogeneous mixture with a pure substance because they are both uniform. The difference is that the composition of the substance is always the same. All solutions are considered homogeneous because the dissolved material is present in the same amount throughout the solution.

Q4

Because natural fiber are very costly but fiber like nylon they are cheaper and they have different colours that distract costumer and everyone can buy this fiber.

Q5

The study, published in the African Journal of Business Management examined face makeup and moisturizers, as well as anti-aging, body firming and anti-cellulite creams. ... Results revealed that most women purchase and use cosmetics for psychological reasons like self-esteem and boosting their attractiveness to men.

Answer 2

Answer:

1. Oxygen molecules are made up of two atoms of oxygen, so it is a diatomic molecule. Whereas ozone is made up of three atoms of oxygen so it is a triatomic molecule.