Definite shape. Definite volume. Particles are tightly packed with strong intermolecular forces.
Two or more substances physically mixed in any ratio.
The total number of protons present in the nucleus of an atom. In a neutral atom, it equals the number of electrons.
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These notes are a starting point. Combining this with consistent practice will help you excel in the chemistry section of any SSC exam. chemistry notes ssc
: Properties between metals and non-metals (e.g., Silicon, Germanium). 2. Acids, Bases, and Salts
Both oxidation and reduction occur simultaneously. D. Acids, Bases, and Salts
Arranged elements based on their atomic masses . He successfully predicted the properties of undiscovered elements (e.g., Eka-boron, Eka-aluminum). Modern Periodic Law
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. Definite shape
A weak electrostatic attraction between a hydrogen atom bonded to a highly electronegative atom (
Matter is anything that has mass and occupies space. It exists in three primary physical states: solids, liquids, and gases.
This is highly practical and scoring.
Atoms of different elements with the same mass number but different atomic numbers (e.g., Argon and Calcium Isotones: Atoms having the same number of neutrons (e.g., 614Csub 6 to the 14th power cap C 816Osub 8 to the 16th power cap O , both have 8 neutrons). 3. Periodic Classification of Elements Two or more substances physically mixed in any ratio
Physical combinations of two or more substances without a fixed ratio.
Indefinite shape (takes the shape of the container), definite volume, and moderate intermolecular forces.
This is one of the most frequently tested topics in SSC CGL and CHSL. Indicator/Property pH < 7; turns Blue Litmus Red Sour; H+ donors (e.g., Vinegar = Acetic Acid) Base pH > 7; turns Red Litmus Blue Bitter; OH– donors Neutral Examples: Pure water, NaCl Common Acids in Nature: Vinegar : Acetic acid Citrus Fruits : Citric acid Sour Milk/Curd : Lactic acid Ant Stings : Formic acid 3. Chemistry in Everyday Life (High Weightage)