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Aluminium is the most abundant metal in ...

Aluminium is the most abundant metal in the earth's crust.

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Identify whether the following sentences are true or false. Also rewrite the false sentences by making suitable corrections. (a) The constituents of a compound can be separated by physical means. (b) Boron is a metal (c) Xenon is an inert gas. (d) Atom is the smallest unit of a compound. (e) Aluminium is the most abundant non-metal in the earth's crust.

The most abundant metal in the earth's crust is

Aluminium is the most abundant metal on earth's crust.

The most abundant metal in the earth crust is

CENGAGE CHEMISTRY-GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS-Exercise (True/False)
  1. Levigation is generally employed for concentration of sulphide ores.

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  2. Every mineral is an ore, but every ore is not a mineral.

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  3. Slag is a product formed during smelting by combination of flux and im...

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  4. Alkali metals can be obtained by chemical reduction of their compounds...

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  5. Sylvine is an ore of potassium.

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  6. Oxide ore are purified by levigation process.

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  7. During electrorefining of a metal, impure metal is made anode.

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  8. Highly pure metal can be obtained by zone refining

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  9. Aluminium is the most abundant metal in the earth's crust.

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  10. Reactive metals occur in native state.

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  11. The process of calcination and roasting is carried out in reverberator...

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  12. In calcination, ore is heated strongly in the absence of air

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  13. Copper is found both in free as well as in combined state in nature.

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  14. Below 1623 K, Al can reduce MgO to Mg, but above 1623 K, reverse is tr...

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  15. Mond's process is used for purification of titanium.

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  16. KCN forms soluble complex with silver galance.

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  17. Zinc blende on roasting often gives Zn metal.

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  18. Silver is extracted by hydrometallurgy.

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  19. The lining of blast furnace is made up of fire clay bricks.

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  20. Gypsum is an ore of magnesium.

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