Sign up now
to enroll in courses, follow best educators, interact with the community and track your progress.
Download
Introduction (in Hindi)
4,410 plays

More
This Lesson Explains The Strategy To Prepare Chapter "General Principles Of Isolation Of Elements"

Pradeep Sharma
Educator | Chemistry | NEET | JEE Teaching students for Cracking NEET , IIT-JEE , AIIMS , XII & XI since 1998.

U
Unacademy user
mam , if someone asked me from the basic level , that what is the difference between abstract class , interface and class? i am actually confused that why do we really need an abstract class and an interface mam can you throw some light on it?
Hannishaa Roy
2 years ago
If you were to ask me the basic difference between a class, interface and an abstract class, i would say that interface is actually used in the place of multiple inheritance. As multiple inheritance is not supported in java so interface came into existence, one class can implement any number of interfaces at a single instance and for detailed understanding you can refer my lesson on interface. And now coming to abstract class, a class has actually got some cons, that is abstract methods are not allowed in a class, but they are allowed in an abstract class. Moreover if you want to share your code with several closely related classes you can use abstract classes. I hope you got your question answered. :)
Easu Vaish
2 years ago
Nice explanation mam, i really appreciate your answer and lectures
Hannishaa Roy
2 years ago
Thank you soo much. :)
is this chapter completed?
AS
Sir aap bahut high level mai batate ho sir please easy way mai bataya karea
Rohit Sahu
8 months ago
if you want easy go else where,for it wont help clearing jee..✌
excellent overview sir
excellent overview sir
excellent overview sir
  1. "Chemistry T5GE EXTRACTION INTRODUCTION NEET AIIMS JEE CLASS 12 PRADEEP SHARMA


  2. "Chemistry T5GE EXTRACTION INTRODUCTION NEET AIIMS JEE CLASS 12 PRADEEP SHARMA


  3. "Chemistry T5GE EXTRACTION INTRODUCTION NEET AIIMS JEE CLASS 12 PRADEEP SHARMA


  4. CLASS-12 Important topics for NEET || JEE


  5. METALLURGY It is the branch of chemistry which deals with the Process of Extraction of elements , mainly metals. Aim - To prepare this chapter for School exams as well as Competitive exams like NEET, JEE etc. Study material Videos on Internet, Reference books Sample paper & Previous year questions.


  6. IMPORTANT TOPICS OF EXTRACTIONS IMPORTANT TOPICS MINERALS & ORES GANGUE PROCESS OF METULLARGY


  7. IMPORTANT TOPICS OF EXTRACTIONS METULLARGY CRUSHING & PULVERISATION CONCENTRATION


  8. IMPORTANT TOPICS OF EXTRACTIONS METULLARGY CRUSHING & PULVERISATION CONCENTRATION GRAVITY SEPARATION FROTH FLOATATION ELECTROMAGNETIC SEPARATION LEACHING


  9. IMPORTANT TOPICS OF EXTRACTIONS METULLARGY OXIDATION CALCINATION ROASTING Removal Of Moisture Removal Of S, P & As Conversion into Oxide Ore


  10. IMPORTANT TOPICS OF EXTRACTIONS METULLARGY REDUCTION HYDROGEN SMELTING Flux | Types | Slag AUTOREDUCTION


  11. IMPORTANT TOPICS OF EXTRACTIONS METULLARGY NI | Al | Fe Cu