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MODERN PUBLICATION-p-BLOCK ELEMENTS-EXERCISE
- When HCI reacts with finely powdered iron, it forms ferrous chloride a...
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- What are interhalogen compounds ? Give example.
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- What are the interhalogen compounds ? Why are these more reactive than...
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- Draw structure of HClO4.
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- Why noble gases have very high values of ionisation enthalpies?
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- Why are halogens strong oxidising agents?
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- Answer the following question- What are leukocytes?
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- Give the preparation, hybridisation and structure of XeF4 (XenonTetraf...
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- Why is helium used in diving apparatus?
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- Give the structure and basicity of H3PO4.
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- Why conc. sulphuric acid is always diluted by adding sulphuric acid to...
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- Fill in the blanks- is an important food nutrient which provide insta...
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- Name the Scientist who prepared the first compound of noble gases.
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- Answer the question with brief explanation- Plants perform which proce...
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- Define the following term- Ammonal?
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- Why does concentrated sulphuric acid has high boiling point?
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- Fluorine exhibits only - 1 oxidation state whereas other halogens exhi...
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- Molecular nitrogen N2 is not particularly reactive. Explain
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- How does O3 react with PbS. Give chemical reaction.
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- Why noble gases are inert or inactive ?
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