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Complete the missing links : The earthly...

Complete the missing links : The earthly and silicious impurities which generally occur with ores are called ...............

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MODERN PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-EXERCISE
  1. Chromium steel is the mixture of-

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  2. Which of the following reagents can be used to convert acetamide into ...

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  3. Complete the missing links : The earthly and silicious impurities whic...

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  4. The most abundant element in the earth's crust is:

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  5. Purest form of iron is

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  6. State whether the statement is true or false- Lunar caustic is the com...

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  7. Zirconium is best refined by ......... method.

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  8. In blast furnace, iron oxide is reduced by

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  9. Nichrome metal alloy is a mixture of-

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  10. The naturally occurring chemical substances in the form of which metal...

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  11. Copper can be extracted from

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  12. Fill in the blanks- alloy is made up of 14% of manganese and 85% of ir...

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  13. Sulphide ores are concentrated by froth floatation process.

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  14. Copper can be extracted from

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  15. Choose the correct alternative : Pine oil is added in froth floatation...

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  16. Bell metal alloy is the mixture of-

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  17. Give appropriate answer of the given statement- Which alloy is made up...

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  18. Which is better reducing agent at temperature 983 K, C or Co?

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  19. Give appropriate answer for the following question- Solder is a mixtur...

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  20. Substances which convert infusible impurities Present in ores into fus...

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