Gold deposit

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HOTS questions on Metals and non-metals  for Class 8 Science Museum Garden, Ant Hill, Gold Deposit, Gold Reserve, Gold Silverware, Crystal Work, Gold Stock, Gold River, About Crystals

HOTS Extra PDF Online test Results Notes HOTS Questions - Class 8 Science - Metals and non-metals These HOTS questions on 'Metals and non-metals' for Class 8 will test the Higher Order Thinking Skills in Science of CBSE students and NSO Science Olympiad aspirants. Aakash noticed that the surface of an aluminium foil became blackened and dull after being used to wrap food items for a few days. Can you explain the reason behind this phenomenon? Solution: The aluminium foil reacts with acids…

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