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Questions from the first batch - Chemistry📌✅
Chemistry
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- The oxides that are only soluble in basic oxide are acidic oxides.
- Soda lime is used instead of caustic soda because it is less deliquescent, less corrosive, and has a higher capacity for absorbing carbon dioxide and moisture.
- Hydrogen reacts with chlorine to form hydrogen chloride under the condition of light (especially UV light) or heat.
- Ethylethanoate reacts with ammonia to form ethanamide (acetamide) and ethanol.
- Water that does not lather easily is hard water.
- A strong acid is an acid that completely dissociates (ionizes) in water to produce hydrogen ions ().
- Electrolysis of brine (concentrated aqueous sodium chloride) gives chlorine gas (), hydrogen gas (), and sodium hydroxide ().
- The electronegativity series describes the tendency of an atom to attract electrons in a chemical bond. Electronegativity generally increases across a period and decreases down a group in the periodic table.
- Faraday's laws of electrolysis are used to calculate the amount of substance produced or consumed at an electrode during electrolysis based on the quantity of electricity passed.
- The extraction of sulfur is done by the Frasch process.
- A neutralization reaction is a chemical reaction between an acid and a base that produces a salt and water.
- The term used for the combination of two or more elements to form a compound is synthesis.
- Calcium carbonate () is largely insoluble in water and does not react significantly with water under normal conditions.
- Yes, sodium bicarbonate () will react with a base to give a salt and water. For example:
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