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MODERN PUBLICATION-p-BLOCK ELEMENTS-EXERCISE
- Give two methods of preparation of dioxygen in laboratory and give its...
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- What happens when PCl5 is heated?
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- Complete the reaction: 4Al + 3O2 rarr
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- Why is H2S less acidic than H2 Te ?
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- How is nitric acid manufactured by Ostwald process?
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- Why sulphuric acid is oily and viscous liquid ?
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- Molecular nitrogen is chemically very inert. Explain why?
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- Write short notes on various allotropes of phosphorus.
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- Name any five oxoacids of phosphorus and write their formulas .
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- Why does PCl3 fume in moisture ?
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- Explain the following: NO2 dimerises to N2O4.
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- Give two methods of preparation of NH3 and three important uses of NH3...
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- Draw the structures of XeO4
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- Fluorine exhibits only - 1 oxidation state whereas other halogens exhi...
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- What is the oxidation number of central atom K2[Zn (OH)4 ]
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- Noble gases have low boiling points. Explain.
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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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- Explain the manufacture of sulphuric acid by contact process.
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- Describe the commerical uses of sulphuric acid.
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