Complete the following table. Metals to be extracted Name of Ore Equations involved in the extraction Mercury Cinnabar ( HgS ) Copper Copper glance ( Cu 2 S ) Iron Haematite ( Fe 2 O 3 ) Manganese Pyrolusite ( MnO 2 ) Sodium Sodium chloride ( NaCl )

Metals to be extracted Name of Ore Equations involved in the extraction Mercury Cinnabar ( HgS ) 2 HgS ( s ) + 3 O 2 ( g ) → Heat 2 HgO ( s ) + 3 SO 2 ( g ) 2 HgO ( s ) → Heat 2 Hg ( l ) + O 2 ( g ) Copper Copper glance ( Cu 2 S ) 2 Cu 2 S + 3 O 2 → 2 Cu 2 O + 2 SO 2 2 Cu 2 O + 2 SO 2 → 6 Cu + SO 2 Iron Haematite ( Fe 2 O 3 ) Fe 2 O 3 ( s ) + 3 C ( s ) → 2 Fe ( s ) + 3 CO ( g ) Manganese Pyrolusite ( MnO 2 ) 3 MnO 2 ( s ) + 4 Al ( s ) → 3 Mn ( l ) + 2 Al 2 O 3 ( s ) + Heat Sodium Sodium chloride ( NaCl ) At Cathode : Na + + e - → Na At Anode : 2 Cl - → Cl 2 + 2 e

E M B I B E

Science Chemistry>Chapter 3 - Metals and Non-metals>Practice Questions>Q 5

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Earn 100

Write the cation and anion in:

${NH}_{4} Cl$ .

Important Questions on Metals and Non-metals

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Science Chemistry>Chapter 3 - Metals and Non-metals>Practice Questions>Q 6

What is the difference between an atom and its ion?

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Science Chemistry>Chapter 3 - Metals and Non-metals>Practice Questions>Q 1

How aluminium is used to join railway tracks? Explain the process with chemical equations.

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Science Chemistry>Chapter 3 - Metals and Non-metals>Practice Questions>Q 2

An ore, on treatment with dilute hydrochloric acid, releases a brisk effervescence of a colourless and odourless gas. Identify the type of ore and the method that may be used to get the oxide of metal from the ore.

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Science Chemistry>Chapter 3 - Metals and Non-metals>Practice Questions>Q 3

Sodium is extracted by the electrolytic reduction of molten sodium chloride instead of reducing with carbon. Assign the reason.

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Science Chemistry>Chapter 3 - Metals and Non-metals>Practice Questions>Q 4

Justify the statement- 'All ores are minerals, but all minerals are not ores.' Give one example which can be called both ore and mineral.

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Science Chemistry>Chapter 3 - Metals and Non-metals>Practice Questions>Q 5

Complete the following table.

Metals to be extracted	Name of Ore	Equations involved in the extraction
Mercury	Cinnabar $(HgS)$
Copper	Copper glance $({Cu}_{2} S)$
Iron	Haematite $({Fe}_{2} O_{3})$
Manganese	Pyrolusite $({MnO}_{2})$
Sodium	Sodium chloride $(NaCl)$