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The pair that does not require calcination is
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The hydroxide, hydrated oxides and carbonate ores, after concentration, are subjected to calcination. In the process, the ore is heated below its melting point in the limited supply or absence of air. As the result, these are converted into their oxides.
So, among the given options, the options having either carbonates (e.g. and ) or hydrated oxide (e.g. ), require calcination while pair of option (a), i.e. and does not require calcination.
So, among the given options, the options having either carbonates (e.g. and ) or hydrated oxide (e.g. ), require calcination while pair of option (a), i.e. and does not require calcination.
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Question Text | The pair that does not require calcination is |
Updated On | Dec 24, 2022 |
Topic | General Principles and Processes of Isolation of Elements |
Subject | Chemistry |
Class | Class 12 |
Answer Type | Text solution:1 Video solution: 1 |
Upvotes | 215 |
Avg. Video Duration | 4 min |