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प्रश्न
Give two examples of the following substance.
Building materials
उत्तर
Two examples of Building materials:
1. Cement
2. Steel
3. Glass
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संबंधित प्रश्न
Give two examples of the following substance.
Food preservatives
Name the scientists who discovered the following:
Safety lamp
Write True or False against the following statement.
Antibiotics are used as preservatives:
State the contributions of Antoine Lavoisier
State the contributions of John Dalton – towards the development of Chemistry.
Preservatives are added to food or beverages.
Give reasons for the following
Aspirin is one of the most widely used medications – globally.
Give reasons for the following
Ordinary soap is wasted in hard water.
Food processing is an important procedure for obtaining marketable food products.
Select the correct name from the choices given below for the following case.
A synthetic fibre used in clothing.
