GENERAL KNOWLEDGE

GK

CHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Who defined “element” as the simplest composition of matter that cannot be broken down further by any chemical means?
A
John Dalton
B
Joseph Priestly
C
Robert Boyle
D
Antoine-Laurent Lavoisier
Explanation: 

Detailed explanation-1: -According to his experiments, Robert Boyle defines the term element as a substance that cannot be decomposed into simpler substances by any chemical or physical means. It is made up of atoms, all having an equal atomic number. It is the simplest chemical substance.

Detailed explanation-2: -Lavoisier defined element as basic form of matter that cannot be broken down into simpler substances by chemical reactions. Solve any question of Some Basic Concepts of Chemistry with:-Patterns of problems.

Detailed explanation-3: -Boyle correctly defined elements as simple substances that could not be decomposed into other substances. Compounds were produced when elements combined to form new substances, unlike mixtures in which no new substances formed.

Detailed explanation-4: -Every general-chemistry student learns of Robert Boyle (1627–1691) as the person who discovered that the volume of a gas decreases with increasing pressure and vice versa-the famous Boyle’s law. A leading scientist and intellectual of his day, he was a great proponent of the experimental method.

Detailed explanation-5: -Robert Boyle’s Discoveries discovered the inverse relationship between pressure and volume in a gas (known as Boyle’s law today) contributed to the development of atomic theory by demonstrating that matter is made of tiny particles that he called corpuscles, but that are known as atoms today.

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