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ASSAM ACADEMIC CENTRE-The p-Block Elements-Example
- Write two uses of Selenium metal.
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- Why does NH3 form hydrogen bond but PH3 does not?
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- Mention an important property of hydrazine.
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- Ammonia is a good complexing agent. Why?
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- Which is acidic hydride of nitrogen?
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- Account for the following: the acidic strength of the hydrides of gro...
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- What is the atomicity of sulphur?
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- Why are elements of 16 group called Chalcogen?
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- Covalency of oxygen never exceeds 2. Why?
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- What is Oleum?
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- Draw the structure of the following molecules and mention their shapes...
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- When HCI reacts with finely powdered iron, it forms ferrous chloride a...
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- Why fluorine is a powerful oxidising agent?
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- Give the hydrolysis reaction of TeF6.
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- Condition for maximum yield of SO3 gas from oxidation of SO3 gas is.
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- Nitrogen exists as diatomic molecule and phosphorous as P4.
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- Arrange the hydrides of group 16 in increasing order of acid strength
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- Account for the following: PCI5 behaves as an ionic compound is solid ...
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- Why is bond angle of PH3 molecule lesser than in NH3 molecule?
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- In which one of the two structures NO2^(+) and NO2^(-) the bond angle ...
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