HSC Chemistry Note

HSC Chemistry Note. Chemistry is the scientific discipline involved with compounds composed of atoms, i.e. elements, and molecules, i.e. combinations of atoms: their composition, structure, properties, behavior and the changes they undergo during a reaction with other compounds. Chemistry addresses topics such as how atoms and molecules interact via chemical bonds to form new chemical compounds. There are four types of chemical bonds: covalent bonds, in which compounds share one or more electron(s); ionic bonds, in which a compound donates one or more electrons to another compound to produce ions: cations and anions; hydrogen bonds; and Van der Waals force bonds. See glossary of chemistry.

HSC Chemistry Note

HSC Chemistry Note

HSC Chemistry 2nd Paper Suggestion and Question Patterns 2018-7

HSC Chemistry 1st Paper Note

HSC Chemistry 2nd Paper Note

অধ্যায় সি কিউ এম সি কিউ
অধ্যায়-১ পরিবেশ রসায়ন  MCQ
অধ্যায়-২ জৈব রসায়ন MCQ
অধ্যায়-৩ পরিমাণগত রসায়ন MCQ
অধ্যায়-৪ তড়িৎ রাসায়ন MCQ
অধ্যায়-৫ অর্থনৈতিক রসায়ন  MCQ

In the scope of its subject, chemistry occupies an intermediate position between physics and biology. It is sometimes called the central science because it provides a foundation for understanding both basic and applied scientific disciplines at a fundamental level. Examples include plant chemistry (botany), the formation of igneous rocks (geology), how atmospheric ozone is formed and how environmental pollutants are degraded (ecology), the properties of the soil on the moon (astrophysics), how medications work (pharmacology), and how to collect DNA evidence at a crime scene (forensics).

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