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NCERT-THE P-BLOCK ELEMENTS -EXERCISE
- Write the resonance structure of CO(3)^(2-) and HCO(3)^(ө).
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- What is the state of hybridisation of carbon in (a)CO(3)^(2-), (b) dia...
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- Explain the difference in properties of diamond and graphite on the ba...
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- Rationalise the given statements and give chemical reactions. a. Lea...
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- Suggest reasons why the B–F bond lengths in BF(3) (130 pm) and BF(4 )^...
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- If B-Cl bond has a dipole moment, explain why BCl(3) molecule has zero...
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- AlF(3) is insoluble in anhydrous HF but dissolves on addition of NaF. ...
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- Suggest a reason as to why CO is poisonous.
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- How is excessive content of CO(2) responsible for global warming?
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- Explain structures of diborane and boric acid.
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- What happens when (a) Borax is heated strongly, (b) Boric acid is ...
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- Explain the following reactions (a) Silicon is heated with methyl ch...
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- Give reasons : (i) Conc. HNO(3) can be transported in aluminium con...
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- Explain why is there a phenomenal decrease in ionisation enthalpy from...
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- How would you explain the lower atomic radii of Ga as compared to Al?
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- What are allotropes? Sketch the structure of two allotropes of carbon ...
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- a. Classify following oxides as neutral, acidic, basic or amphoteric: ...
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- In some of the reactions, thallium resembles aluminium whereas in othe...
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- When metal X is treated with sodium hydroxide, a white precipitate (A)...
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- What do you understand by (a) inert pair effect (b) allotropy and (c...
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