Science Objective Type Questions (Series – 5)
Q. 1. For which metals the distillation method of refining is used? (a). Mercury and zinc (b). Tin and lead (c). Iron and aluminium (d). Copper and zinc Q. 2. What is chemical formula of bauxite? (a). Al 2 O 3 (b). Al 2 O 3 .2H 2 O (c). Na 3 Al F 6 (d). None Q. 3. What is the melting point of alumina? (a). 2340K (b). 2348K (c). 2350K (d). 2446K Q. 4. Which is used as fungicide? (a). Chlorine (b). Sulphur (c). Carbon (d). Phosphorus Q. 5. Which metal is best conductor of heat? (a). Iron (b). Silver (c). Copper (d). Zinc Q. 6. Photosynthesis is which type of process? (a). Physical (b). Chemical (c). Biochemical (d). Biotic Q. 7. Pancreatic juice is secreted from where..? (a). Stomach (b). Liver (c). Gall bladder (d). Pancreas Q. 8. Which organ is of U-shaped in human digestive system? (a). Stomach (b). Duodenum (c). Oesophagus (d). Liver Q. 9. How many satellites does Jupiter