Advertisements
Advertisements
Question
Name the scientists who discovered the following:
Elements
Solution
A scientist who discovered Elements:
Antoine Lavoisier was a French nobleman. He revolutionized chemistry. Lavoisier named the elements carbon, hydrogen, and oxygen and discovered the role of oxygen in combustion and respiration for which he is most noted. He established that water is a compound and helped to continue the transformation of chemistry from a qualitative science to a quantitative one
APPEARS IN
RELATED QUESTIONS
Give two examples of the following substance.
Food preservatives
Name the chemicals which help in increasing food production.
Name the scientists who discovered the following:
Oxygen
Fill in the blank:
Inert gases were discovered by ___________
Write True or False against the following statement.
Antibiotics are used as preservatives:
Write True or False against the following statement.
D.D.T. is an important fertiliser:
Choose the correct alternative from the choices given below for the following statement:
Mortar is used as a
Differentiate between natural fibres & synthetic fibres.
Give reasons for the following
Aspirin is one of the most widely used medications – globally.
Give reasons for the following
Cosmetics may contain preservatives, as one of their ingredients.
