Science

Hi Chetan,
Magnesium has a very energetic combustion reaction with oxygen, where two atoms of magnesium bond with one molecule of oxygen gas to form two molecules of magnesium oxide. This reaction is extremely exothermic, releasing a great deal of heat and light, which is why magnesium fuses are used to initiate reactions such as the thermite reaction, and magnesium is used in flares for high visibility.
The reaction of magnesium to oxygen is so energetically favorable that burning magnesium can steal the oxygen from both water and carbon dioxide, making these common methods of dousing flames ineffective to stop magnesium combustion.
Magnesium is an alkaline earth metal, which is highly reactive because of its strong tendency to lose two electrons for more stable electron orbitals. This property is one reason why it reacts so strongly with oxygen, which tends to take on two extra electrons for a more stable configuration. Magnesium has an atomic number one greater than sodium, an even more reactive metal.
Magnesium is also a crucial nutrient for many animals, including humans, where it plays several roles alongside calcium, another alkaline earth metal directly below it on the periodic table. Magnesium fires are dangerous, requiring a dry powder fire extinguisher and eye protection for its very bright combustion to handle safely.
All the best.

Hi Rahul,
Semiconductors are crystalline or amorphous solids with distinct electrical characteristics. They are of high electrical resistance higher than typical resistance materials, but still of much lower resistance than insulators. Their resistance decreases as their temperature increases, which is behavior opposite to that of a metal. Finally, their conducting properties may be altered in useful ways by the deliberate, controlled introduction of impurities ("doping") into the crystal structure, which lowers its resistance but also permits the creation of semiconductor junctions between differently-doped regions of the extrinsic semiconductor crystal. The behavior of charge carriers which include electrons, ions and electron holes at these junctions is the basis of diodes, transistors and all modern electronics.
All the best.

Hello,
The career scope in science field is very good. There are many jobs available in this field for you. You can get into research field as it is one of the best option.
If you pursue M.Sc in forensic science, then you can also try to get a job in CBI or other police services and crime branch
If you pursue M.Sc biotechnology, then you can get into medical field and work as clinical research associate. A bio technologist may find jobs in various quarters in India. Drug and pharmaceutical research, chemicals, environment control, waste management, energy, food processing and bio-processing industries, tanning industries.
To make career in research field as research fellow or as a lecturer, you have to appear in CSIR NET exam.
You can check the below mentioned link:
https://www.eduncle.com/csir-net-exam . hope it helps.