ALUMINUM MCQs

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1. Which one of the following is not an ore of aluminum?





2. Aluminum metal is purified by:





3. In the alumino-thermite process, Al acts as:





4. Symbol of aluminum is:





5. Formula of alumina is:





6. Aluminum is the _____ largely available naturally occurring element:





7. Color of aluminum is:





8. Melting point of aluminum is:





9. Formula of bauxite is:





10. Aluminum is extracted mostly from ore:





11. Pure aluminum is obtained from:





12. Most of the aluminum is extracted by:





13. How bauxite is cleaned?





14. Aluminum is a metal:





15. One of the important ore of aluminum:





16. Al(OH)ā‚ƒ is:





17. From electric furnace the obtained aluminum is:





18. Thermite process is discovered by:





19. Which metal is ductile and malleable?





20. Aluminum is used for:





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