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PATHFINDER-P-BLOCK ELEMENTS -QUESTION BANK
- Starting from boric acid, how would you prepare (i) meta and (ii) tetr...
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- Boron tribromide is stronger acid than boron trifluoride. Why ?
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- Can we prepare anhydrous AlCl3 by heating AlCl3. 6H2O ?
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- Aluminium fluoride is ionic while AlCl3 is covalent. Why ?
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- Explain the following "The ppi-ppi back bonding occurs in the halide...
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- Compound (X) on reduction with LiAlH4 gives a hydride (Y) containing 2...
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- Carbon tetrachloride is not affected but silicon tetrachloride is hydr...
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- Why Sn (II) is a reducing agent whereas Pb (II) is not ?
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- Graphite is a conductor but diamond is not a conductor. Explan.
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- PbCl4 exist while PbBr4 and PbI4 do not exist.-Explain.
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- Borax structure contains
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- When orthoboric acid is heated strongly, it gives which of the followi...
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- Which compounds gives O2 on moderate heating ?
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- Amorphous B on heating in air forms
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- AlCl3 fumes in moist air because of
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- The dissolution of Al(OH)3 by a solution of NaOH results in the format...
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- Boron carbide B4C is widely used in
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- Which of the following compounds is optically active ?
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- When a solution of NaOH is added in excess to the solution of potash a...
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- Inorganic graphite is
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