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V PUBLICATION-THE p - BLOCK ELEMENTS-QUESTION BANK
- If 'B-Cl' bond has a dipole moment, explain why 'BCl3' molecule has ze...
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- Aluminium trifluoride is insoluble in anhydrous HF but dissolves on ad...
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- Carbon monoxide is highly poisonous. Why?
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- Two important oxides of carbon are carbon monoxide and carbon dioxide....
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- Borax, orthoboric acid and diborane are some useful compounds of boron...
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- What happens when Borax is heated
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- Explain the reaction Si is heated with methyl chloride at high tempera...
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- Give reasons (vii) Aluminium wire is used to make transmission cables.
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- Explain why is there a phenomenal decrease in ionisation enthalpy from...
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- How do you explain the lower atomic radius of gallium as compared to a...
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- Carbon has many allotropes. Write the name of any two allotropic forms...
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- Classify the oxides as neutral, acidic amphoteric and basic CO, B2O3...
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- In some of the reactions, thallium resembles aluminium, whereas in oth...
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- When metal 'X' is treated with sodium hydroxide, a white precipitate (...
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- What do you understand by (a) Inert pair effect (b) allotropy (c) cate...
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- A certain salt X gives the following reactions (i) Its aqueous solutio...
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- Write balanced equation for B2H6+H2O rarr
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- Give one method for industrial preparationi and one for laboratory pre...
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- The aqueous solution of borax is
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- Boric acid is polymeric due to -----
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