Greenhouse gases trap solar radiation in the earth's atmosphere, raising its temperature. Main greenhouse gases include Carbon Dioxide ( CO2cap C cap O sub 2 ), Methane ( CH4cap C cap H sub 4 ), Water Vapor, and Nitrous Oxide ( N2Ocap N sub 2 cap O Produced when Sulfur Dioxide ( SO2cap S cap O sub 2 ) and Nitrogen Oxides ( NOxcap N cap O sub x
Preparing for the Staff Selection Commission (SSC) exams—such as CGL, CHSL, MTS, or CPO—requires a solid understanding of Science, particularly Chemistry. General Science is a crucial part of the General Awareness section, and a well-structured understanding of Chemistry can significantly boost your overall score.
Superheated gas composed of electrons and positive ions. Found in stars and neon signs.
) — used for welding electrical wires due to low melting point. Iron ( ) + Chromium ( ) + Nickel ( ) + Carbon ( ) — Chromium prevents rusting. German Silver: Copper ( ) + Zinc ( ) + Nickel ( ) — Contains 0% Silver. Amalgam: Any alloy containing Mercury ( 8. Chemistry in Everyday Life
Industrial manufacture of Nitric Acid ( HNO3cap H cap N cap O sub 3 chemistry notes ssc
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Group 1 (Alkali Metals), Group 2 (Alkaline Earth Metals), Group 17 (Halogens), Group 18 (Noble Gases). C. Chemical Bonding & Reactions Ionic Bond: Formed by the transfer of electrons (e.g., Covalent Bond: Formed by the sharing of electrons (e.g., CH4CH sub 4 Types of Reactions:
Alloys are homogeneous mixtures of metals with other metals or non-metals. Copper ( ) + Zinc ( Bronze: Copper ( Stainless Steel: Iron ( ) + Chromium ( ) + Nickel ( ) + Carbon ( Solder: Lead ( Amalgam: Any metal alloy containing Mercury ( 7. Carbon and Its Compounds
Which do you want to test yourself on with practice questions? Greenhouse gases trap solar radiation in the earth's
Matter is anything that has mass and occupies space. It exists in different physical forms based on the arrangement and energy of its particles. The Five States of Matter
Know the basic properties (shape, volume, compressibility).
The periodic table organizes elements to highlight trends in their chemical and physical properties. Historical Evolution
Sour taste, turns blue litmus to red. pH < 7. Release H+cap H raised to the positive power ions in water. Superheated gas composed of electrons and positive ions
: Unsaturated hydrocarbons with at least one triple bond. General formula: CnH2n−2cap C sub n cap H sub 2 n minus 2 end-sub 8. Common Chemical Names, Formulas, and Everyday Uses
Atoms of the same element with the same atomic number but different mass numbers (e.g., Hydrogen: Protium, Deuterium, Tritium).
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