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V PUBLICATION-The p-BLOCK ELEMENTS-QUESTION BANK
- PCl , is known but 'NCl5' is unknown. Why?
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- N2 is inert. Why?
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- Urea is used as a fertilizer. Why?
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- What is the reaction between ammonium and chloroplatinic acid?
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- Which property is made use of in separating red phosphorus from white ...
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- Which is more stable PCl3 or PCl5 Why?
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- Group 16 elements are called chalcogens? Why?
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- Which has higher value for 1st ionisation enthalpy - oxygen or nitrog...
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- Group 16 elements have higher values of electronegativity. Why?
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- Oxygen is a diatomic gas. Why?
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- Suluphur has a strong tendency for catenation than oxygen. Why?
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- Hydrocarbons are used as fuels. Why?
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- Name the anhydride of sulphurous acid. Why is it called so?
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- Sulphuir dioxide 'SO2' is, a reducing agent. Why?
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- Hot concentrated sulphuric acid is a strong oxidising agent. Why?
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- Fluorine does not show higher positive oxidation states. Why?
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- Arrange HF, HCI, HBr and HI in the order of their i dipole moments. ii...
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- In presence of moisture, 'C l2' acts as a powerful oxidising agent. Wh...
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- Does the hydrolysis of 'XeF6' lead to a redox reaction?
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- Explain i) Sulphur vapours, exhibits some paramagnetism ii) ClF, exi...
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