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NCERT-THE P-BLOCK ELEMENTS -EXERCISE
- 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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- A certain salt (X) gives the following tests : (a) Its aqueous solut...
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- Write balanced equations for: a.BF(3)+LiHto b.B(2)H(6)+H(2)Oto c...
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- Give one method for industrial preparation and one for laboratory prep...
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- Oxides formed by p-block elements may be (i) basic (ii) acidic (...
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- Boric acid is polymeric due to
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- The type of hybridisation of boron in diborane is (a) sp , (b) sp^(...
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- Thermodynamically the most stable form of carbon is (a) diamond , (b...
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- Elements of group 14 (a) exhibit oxidation state of +4 only (b) ex...
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- If the starting material for the manufacture of silicone is RSiCl(3), ...
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