Science Objective Type Questions (Series – 3)
Q. 1. Contraction of muscles is which type of reaction? (a). Fast reaction (b). Slow reaction (c). Moderate reaction (d). None of above Q. 2. Hydrolysis of starch produces (a). Glucose (b). Vinegar (c). Maltose (d). None of above Q. 3. Which two metals are most ductile? (a). Iron and copper (b). Iron and zinc (c). Gold and copper (d). Gold and silver Q. 4. The raw material used in blast furnace is (a). Haematite (b). Coke (c). Lime stone (d). All of above Q. 5. In which of the following organism oxygen reach directly to the cells? (a). Fish (b). Humans (c). Earthworm (d). Insects Q. 6. Kerb cycle is related to what type of respiration? (a). Aerobic respiration (b). Anaerobic respiration (c). A and B both (d). None of above Q. 7. From where digestion of carbohydrates starts? (a). From oesophagus (b). From abdomen (c). From mouth (d). From stomach Q. 8. Blood cells are formed in (a). Bra