• By noor arora
• 12 Dec 2022

Class 11 Biology Revision Notes for Morphology of Flowering Plants of Chapter 5 Morphology is the branch of biological science that deals with the study of form, size, colour, structure and relative position of various parts of organisms.Importance of morphology-

• By noor arora
• 12 Dec 2022

Class 11 Biology Revision Notes for Animal Kingdom of Chapter 4 CLASSIFICATION OF ANIMALSPhylum Porifera- Phylum Cnidaria ( Coelenterate)- Phylum Ctenophora- Phylum Platyhelminthes (The Flat worms) Phylum Aschelminthes (The Round Worm) Phylum Annelida Phylum Arthropoda Economically important – Apis (honey bee), Bombyx (silk worm).Vectors

• By noor arora
• 12 Dec 2022

Class 11 Biology Revision Notes for Plant Kingdom of Chapter 3 Algae: These include the simplest plants which possess undifferentiated or thallus like forms, reproductive organs single celled called gametangia. It includes only Algae.Characteristic of Algae Green Algae Brown Algae Red

• By noor arora
• 12 Dec 2022

Revision Notes for Class 11 Biology Chapter 2 – Biological Classification Biological classification is the scientific procedure of arranging organisms into groups and subgroups on the basis of their similarities and dissimilarities and placing the group in a hierarchy of

• By noor arora
• 12 Dec 2022

The Living World Class 11 Notes Biology Chapter 1 1. Living World: Characteristics Non-living things like mountains, boulders, sand dunes also grow in size, but just by accumulating the material on their external surface. Thus, growth in living things is

• By noor arora
• 12 Dec 2022

Environmental Chemistry Class 11 Notes Chemistry Introduction Interrelation of biological, social, economical, physical and chemical studies with our surrounding is called environmental studies. Environmental pollution is the greatest health hazard all over the world. Environmental chemistry deals with the study of the origin, transport

• By noor arora
• 12 Dec 2022

Hydrocarbons Class 11 Notes Chemistry Introduction The term ‘hydrocarbon’ is self-explanatory meaning compounds of carbon and hydrogen only. Hydrocarbons hold economic potential in our daily life. Natural gas and petroleum are chief sources of aliphatic hydrocarbons at the present time, and coal is one of the

• By noor arora
• 12 Dec 2022

Organic Chemistry Some Basic Principles and Techniques Class 11 Notes Chemistry Structural Representations of Organic Compounds (i). Structural Formulas The lewis structures can be simplified by representing the two electron covalent bonds by a dash (–). In this representation, a

• By noor arora
• 12 Dec 2022

The p-Block Elements Class 11 Notes Chemistry Introduction The elements in which last electron enters into p-subshell are called as p-block elements. The number of p-orbitals is three and, therefore, the maximum number of electrons that can be accommodated in a

• By noor arora
• 12 Dec 2022

The s-Block Elements Class 11 Notes Chemistry The s-Block Elements The s-block elements of the Periodic Table are those in which the last electron enters the outermost s-orbital. As the s-orbital can accommodate only two electrons, two groups (1 &