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MODERN PUBLICATION-p-BLOCK ELEMENTS-EXERCISE
- Express 1153 in roman numbers.
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- The bond angles (O-N-O) are not of the same value in NO2^(-) and NO2^(...
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- How is nitric acid manufactured by Ostwald process?
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- What is the oxidation number of Cl in compound HClO4?
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- Complete the following equation : XeF4+ H2O rarr
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- Write down the preparation of ozone from oxygen.
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- What structures does PCl5 adopt in the solid state and vapour state ?
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- What happens, when sulphur is treated with conc. HNO3 ?
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- How is SO2 an air pollutant?
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- Explain the following fact : Halogens are coloured.
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- Why does NH3 form hydrogen bond but PH3 does not?
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- Why does O3 act as a powerful oxidising agent ?
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- Why is NH3 more basic than PH3 ?
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- Draw the structure of XeF2, XeF4 and XeF6.
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- Explain the manufacture of sulphuric acid by contact process.
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- Name the process for manufacture of nitric acid.
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- Why does the reactivity of nitrogen differ from phosphorus?
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- Write the chemical equations when: Zinc reacts with cone. HNO3
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- Write the chemical equations when Zinc reacts with dilute HNO3.
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- Write formula of phosphine.
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