Advertisements
Advertisements
Question
State the contributions of John Dalton – towards the development of Chemistry.
Advertisements
Solution
John Dalton
1. He compiled his theory in 1803 known as Dalton’s atomic theory.
2. The main postulates of Dalton’s atomic theory are that “Matter consists of particles called atoms, which are indivisible and cannot be created or destroyed.”
3. The theory was later contradicted in certain aspects by the Modem atomic theory
RELATED QUESTIONS
Give two examples of the following substance.
Building materials
Give two examples of the following substance.
Chemical war weapons
What is the contribution of chemistry in following field?
Industry
Name the scientists who discovered the following:
Oxygen
Name the scientists who discovered the following:
Elements
_____________ help to increase the production of food.
State the contributions of Dimitri Mendeleev
Preservatives are added to food or beverages.
Give reasons for the following
Cosmetics may contain preservatives, as one of their ingredients.
Give reasons for the following
All medicines must be taken under proper doctors' supervision and in the correct dose.
