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The correct answer is [B]. When excess carbon dioxide is passed through lime water, the initially formed insoluble calcium carbonate reacts further with CO₂ and water to form water-soluble calcium bicarbonate, causing the milkiness in lime water to disappear. 2026 board ...
During the preparation of hydrogen chloride gas, the gas is usually passed through the guard tube containing calcium chloride during humid climate, as calcium chloride is a good drying agent and absorbs moisture from the gas. Tiwari Academy provides CBSE Class ...
The correct answer is [B] Hydrochloric acid, Pepsin, Mucus. In the human alimentary canal, gastric glands of the stomach secrete hydrochloric acid to kill germs, pepsin to digest proteins, and mucus to protect stomach lining.
The correct answer is (B) maintaining posture, balancing the body, coordinating voluntary movements.The cerebellum controls balance, posture, and smooth coordination of voluntary muscles, ensuring precise and coordinated body movements. CBSE Sample Paper Class 10 Science 2025-26 Tiwari Academy provides CBSE Class ...
The correct answer is (C) starch into simple sugars. Saliva contains salivary amylase, an enzyme that begins the digestion of starch into maltose (simple sugars). Less saliva reduces this conversion, slowing down carbohydrate digestion in the mouth. class 10 science half ...
