24/07/2026
IDEA OF REACTION MECHANISM
CHEMISTRY
We don’t memorize, we derive. Step-by-step Physics for +2
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Making Class 11 & 12 Physics derivations easy in 5–10 minutes. Concept → Steps → Final Formula. Learn Physics the Sajilo way!👍🖊️🫰
24/07/2026
23/07/2026
,class 11 NEB
imp concept useful in class 12 also
23/07/2026
Basic concept of nomenclature of organic compounds
23/07/2026
Nomenclature of organic compounds
11
chemistry
16/07/2026
Basic knowledge of graphs which is very useful in physics
15/07/2026
formula sheet of periodic motion
14/07/2026
one page complete notes of Rotational dynamic
12
What is the Mole Concept?
The mole is a counting unit in chemistry, just like dozen (12 items).
1 mole = 6.022 × 10²³ particles (atoms / molecules / ions)
This number is called Avogadro’s number.
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