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प्रश्न
Define the term : Gangue
उत्तर
Gangue: The rocky impurities like (SiO2) present in an ore are called gangue.
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संबंधित प्रश्न
Write the steps involved in the extraction of pure metals in the middle of the activity series from their carbonate ores.
Name the method by which aluminium metal is extracted.
Name two metals which occur in nature in free state as well as in combined state.
Which gas is produced during the extraction of aluminium? At which electrode is this gas produced?
The metal which can be extracted simply by heating the cinnabar ore in air is:
(a) Zn
(b) Cu
(c) Al
(d) Hg
State one observation for each of the following :
Copper sulphate solution is electrolysed using copper electrodes.
Complete the incomplete statement with missing word:
Non-metals form acidic oxides while metals form ______.
Name : The metal which is liquid at room temperature.
Write the name.
The molecular formula of main ore of aluminium –
Explain in brief types of extraction of highly reactive metals according to their reactivity.
