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प्रश्न
Find the odd one out and give its explanation.
पर्याय
Na
K
Cu
Li
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उत्तर
Cu
Explanation-
Copper (Cu) is a less reactive metal while others are highly reactive metals.
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संबंधित प्रश्न
Give reasons.
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Give a reasons for the following:
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The process by which sulphide ore is concentrated.
Name the method by which aluminium metal is extracted.
Name one ore of copper (other than cuprite). Which compound of copper is present in this ore? Also, write its chemical formula.
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- What is metal А?
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- Name the substance B.
- Name the substance D.
- What type of chemical can be used to remove the green layer from metal C and clean it? Why?
Name the following:
Two metals which are found in the free or native state.
What is meant by concentration of ores?
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Explain why it is necessary to renew the anode periodically.
Complete the incomplete statement with missing word:
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Name:
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Usually ______ ores are subjected to ______ which is done in the absence of air.
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Write the molecular formulae of the following compound.
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Explain in brief types of extraction of less reactive metals according to their reactivity.
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An alloy is
