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SUBHASH PUBLICATION-THE 'd' - AND 'f' - BLOCK ELEMENTS -Question and Answer
- How is potassium permanganate manufactured from MnO(2) (pyrolusite)?
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- Name a compound which is isostructural with KMnO(4).
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- What happens when potassium permanganate crystals are heated?
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- What is the shape of manganate and permanganate ions? Write structures...
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- What is the magnetic nature of manganate and permanganate ions.
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- Give four examples to show that acidified KMnO(4) is an oxidising agen...
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- What is lanthanoid contraction? Mention the cause for it.
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- What is lanthanoid contraction? Write the general oxidation state of a...
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- Give two consequences of lanthanoid contraction.
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- What happens when lanthanoids are heated in Oxygen
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- What happens when lanthanoids are heated in Nitrogen
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- What happens when lanthanoids are heated in Halogen
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- What happens when lanthanoids are heated in Carbon?
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- How lanthanoids reacts with water and dil. Acids?
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- What is mischmetall? Give its one use.
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- What is actinoid contraction? Why actinoid contraction is greater than...
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- Give reason: Actinoid contraction is greater from element to element t...
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- Give general oxidation state of actinoids. Why actinoids shows variabl...
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- Zr and Hf have almost identical atomic radii. Give reason.
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- Give reasons: Actinoids show variable oxidation states.
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