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Carbohydrates || Lipids|| Proteins || Vitamins & Minerals || Fats and Oils

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Carbohydrates Carbohydrates are organic compounds composed of carbon, hydrogen, and oxygen, typically with a hydrogen-to-oxygen ratio of 2:1. They are one of the primary macronutrients and serve as a significant energy source for living organisms. They also play vital roles in the structure and function of cells. Sources of Carbohydrates Natural Sources: Plants: Grains (wheat, rice, maize), fruits (bananas, apples, mangoes), vegetables (potatoes, carrots), and legumes (lentils, beans). Dairy Products: Milk, yogurt. Sugars: Honey, sugarcane, and fruits. Processed Foods: Bread, pasta, cookies, and other carbohydrate-rich snacks. Functions of Carbohydrates Energy Source: Provide 4 kcal of energy per gram. Protein Sparing: Spare proteins from being used as energy sources. Structural Role: Form structural components like cellulose in plants. Storage: Serve as storage forms of energy (e.g., glycogen in animals and starch in plants). Sweetening Agents: Many ca...
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2.0 gram of a metal burst in oxygen give 3.2 gram of its oxide. 1.42 gram of the same metal heat in steam give 2.27 gram of its oxide which toys shown by this data?

Ques : 2.0 gram of a metal burst in oxygen give 3.2 gram of its oxide. 1.42 gram of the same metal heat in steam give 2.27 gram of its oxide which toys shown by this data?  Ans : In the first compound, 3.2 gram of metal oxide contained 2.0 gram of metal 100 gram of metal oxide contained metal =2.0/3.2 × 100= 62.5 g :· % metal in first compound= 62.5% In the second compound, 2.27 gram of metal oxide contains metal = 1.42 gram 100 gram of metal oxide contains the metal= 1.42/2.27×100=62.55 gram :· % metal in first compound= 62.55% Thus, the percentage of metal in metal oxide obtained from to experiment is nearly same. Hence, the above data illustrate the law of constant composition.  <<   Previous                                                       Next   >>
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