Covalent Bonds IGCSE Chemistry CIE Revision Notes
Single Covalent Bonds A single covalent bond is formed when only one pair of electrons is shared between atoms. A sigma bond is the strongest type of covalent bond,…
Ions & Ionic Bonding
The Formation of Ions Ions are formed by the addition of electrons to, or the removal of electrons from, neutral atoms or molecules or other ions; by combination…
The Structure of Matter (Bonding)
The Structure of Matter (Bonding) Types of Substance & Properties All substances can be classified into one of these three types Elements, compounds and mixtures Element A substance…
GATE / CSIR NET Thermodynamics MCQ mock test
under construction(check answers with books/references till we update)…
Atomic Structure & the Periodic Table
Protons, Neutrons & Electrons ( IGCSE Chemistry CIE Revision Notes ) Elements are made of tiny particles of matter called atoms Each atom is made of subatomic particles called protons, neutrons and electrons…
Experimental Techniques : Measurement & Purity
Time, Temperature, Mass & Volume Time Time can be measured using a stopwatch or stopclock which are usually accurate to one or two decimal places The units of…
The Particulate Nature of Matter
Solids, Liquids & Gases Solid has a definite shape and volume, liquid has a definite volume but take the shape of the container, gas has no definite shape or…
Carbon Dioxide & Methane Revision Notes
Greenhouse gases The greenhouse gases trap heat in the atmosphere and warm the planet Earth. The main gases responsible for the greenhouse effect include carbon dioxide, methane, nitrous oxide,…
Fertilizers Revision Notes IGCSE Chemistry
Fertilizers Fertilizers are “The products that improve the levels of the available plant nutrients and/or the chemical and physical properties of the soil, thereby directly or indirectly enhancing…
MONO NUCLEAR CARBONYLS
Mononuclear metal carbonyls: The metal carbonyls which contain only one metal atom per molecule are called mononuclear metal carbonyls. Ex: [Ni(CO)4], [Fe(CO)5 ], [Cr(CO)6 ] , etc. [Ni(CO)4]-Nickel…