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USHA PUBLICATION-D- AND F_BLOCK ELEMENT & CO-ORDINATION COMPOUND -EXERCISE
- Explain why transition metal ions are usually coloured.
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- Write three main postulates of VBT for explaining bonding in co-ordina...
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- What is leaching ? Glve an example.
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- [Fe(CN)6]^(4-) and [Fe(H2O)6]^(2+), are of different colours in dilate...
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- Describe the principle of van-Arkel process for refining of metal.
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- Difference between double salt and complex salt.
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- Write the name and composition of two ores of copper.
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- Give the principle of extraction of copper from one of its ore.
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- What are transition metals ? Write their general outer electronic conf...
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- Discuss the general characteristics properties of transition elements.
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- Indicate the steps in the preparation of K2Cr2O7 from chromite ore.
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- Write the principle of extraction of 'Zn from its sulphide ore.
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- What is spectrochemical series ?
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- Explain the difference between weak field ligand and strong field liga...
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- Write two important ores of aluminium.
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- Discuss the principle of extraction of aluminium from one of its chief...
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- Write two important ores of iron.
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- Give the principle of extraction of iron from one of its ore.
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- The correct order of bond dissociation energy of halogens is .
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- In which reaction ozone acts as reductant ?
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