WHAT IS CHEMISTRY
CHEMISTRY
Based on = Substance or matter.
Kutnowns about →
1). Composition of substance
2). Combination of substance
3) To forms molecule & compound
4). Structure of molecule and compound
5). Properties of = molecule & compound
6). Use of = Molecule & molecular compound.
Definition →
It is content two type of particle = (a) Necessary particle (b) accessory particle.
Atom
2). Combination of substance
3) To forms molecule & compound
4). Structure of molecule and compound
5). Properties of = molecule & compound
6). Use of = Molecule & molecular compound.
Definition →
It is the branch of experimental science in which we study about composition, combination, structure, properties and its use of substance is called chemistry.
OR
The branch of science, whose central concerns are the structure and behavior of atoms (Elements), the composition and properties of compounds, the reaction between substances with their accompanying energy exchange and the laws that unite these phenomena, is called chemistry.
Fact :
Chemistry is based on →
1) Substance ✅
3) Particle
2) Atom
4) None
Ans 1) Substance.
OR
1) Substance
2) Particle
3) Atom
4) All ✅
Ans: 4) All.
Substance based on →
1) Occupy space
2) Cortaided / contain mass.
Mass
↓ ↓ ↓
Kg ( Substance) Liters (Liquid) Scale (Gases Substance)
Definition →
Anything Which occupy space and contain mass is called substance.
Substance conclusion
1) Volume
2) Mass
3) Weight
4) Perception.
COMPOSITION OF SUBSTANCES
Based on = Atom
Atom based on = Particle
Atom:
Knowns about →
1) Composition
2) Combination of an atom
3) Physical properties and chemical properties
Definition according to above
It is defined as which is consist of extremely smallest particle
Which takes part in a combination and both physical and chemical properties which are present of an is called atom.
OR
It is consist of very extremely smallest particles, mostly and mostly take part in take part a combination reorly ( i.e Elementary form) to take part a combination and both physical and chemical properties which are present in it is called atom.
Fact:
Atom is defined as →
(1) Consist = Extremely smallest particles
(2) Takes part = (a) Most in combination form (b) Really in ( The Ne, Ar, Kr, Xe, Rn Element / atom.
(3) Properties = (a) Physical & (b) Chemical
(4) All ✅
Ans: (4) All
Chemistry has been described in the following section:
1) Physical chemistry :
This is the branch of chemistry is a study of chemical incident which are governed by the rule and principle.
2) Inorganic chemistry :
This branch of chemistry studies compounds to all known element. It mainly refers to the minirals found in the earth crust.
3) Industrial chemistry
This is the branch of chemistry which studies the process of manufacturing various product, is called Industrial chemistry. Example - Soap, Detergent, fertilizer, cream, paint, rubber, colors etc.
4) Analytical Chemistry:
This is the branch of chemistry which studies the qualitative and emotional analysis of many substances.
5) Bio-Chemistry
The branch of chemistry which studies the chemical changes in the body of plant, animal, and living organism.
6)Nuclear chemistry:
This branch of chemistry which studies the nuclear reactions - nuclear fission, fusion and transmutation process.
7) Organic Chemistry:
This is the branch of experimental science in which knowns about composition of carbon by the combination of carbon to forms carbonic molecule and molecular compound with structure, properties, use known as organic chemistry.
Composition of atom
It is content two type of particle = (a) Necessary particle (b) accessory particle.
Atom
↓ ↓
(a) Necessary particle (b) accessory particle
(a) Necessary particle
↓ ↓ ↓
Electron Proton Neutron
OR
(a) Necessary particle
↓ ↓ ↓ ↓
Electron Proton Neutron Pi-meson
A) Electron
ALSO READ THIS
(ORGANIC CHEMISTRY) CYCLIC MOLECULE & MOLECULAR COMPOUND || TYPE & PROPERTIES.
ACYCLIC OF ALKENE & HOMOLOGOUS - SERIES
FUNCTIONAL - GROUP
(a) Necessary particle (b) accessory particle
(a) Necessary particle
↓ ↓ ↓
Electron Proton Neutron
OR
(a) Necessary particle
↓ ↓ ↓ ↓
Electron Proton Neutron Pi-meson
A) Electron
Knowns about = 1) Fundamental particle, (2) Sub atomic particle, (3) Internal particle
Denoted by = - e
Charged = negative (- ve )
Present = Out side the nucleus
The discovery of electron was done by JJ Thomson in 1906.
ALSO READ THIS
(ORGANIC CHEMISTRY) CYCLIC MOLECULE & MOLECULAR COMPOUND || TYPE & PROPERTIES.
ACYCLIC OF ALKENE & HOMOLOGOUS - SERIES
FUNCTIONAL - GROUP
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