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DINESH PUBLICATION-THE P-BLOCK ELEMENTS -Problems For Practice
- How many (P-O) bonds are present in (i) P(4)O(6) (ii) P(4)O(10) ?
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- Out of O(2) " and " O(3) which is a better oxidising agent ?
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- What is the shape of ozone molecule ?
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- Select the acidic and basic anhydrides from the following : (i) Na(2...
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- Give two examples of mixed oxides.
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- What is the nature of the following oxides : (i) CO (ii) Al(2)O(3) (...
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- What happends when water is dropped over Na(2)O(2) ?
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- Why is O(3) more reactive than O(2) ?
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- Name two compounds in which oxygen has oxidation states different from...
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- How does sulphur normally exist ?
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- What is the hybridisation of sulphur in H(2)SO(4) ?
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- What is oil of vitriol ?
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- What is the IUPAC name of H(2)S(4) gas ?
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- What is the oxidation state of sulphur in (i) PbS (ii) SO(2) (iii) SO(...
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- What happens to sugar when conc. H(2)SO(4) is dropped on it ?
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- Which allotropic form of sulphur is not sharp melting ?
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- Which chemical is used to remove a fresh iodine stain ?
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- What are the colours of the following sulphides ? (i) CoS (ii) CuS (...
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- Out of 1 M H(2)SO(4) and 1 N H(2)SO(4), which is more concentrated an...
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- Which substance removes As(2)O(3) in contact process ?
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