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V PUBLICATION-THE p - BLOCK ELEMENTS-QUESTION BANK
- Give a labouratory method to prepare diaborance and ist some propertie...
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- Why would high pressure be an expected condition for the transformatio...
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- What are fullerences? How are they prepared?
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- Gallium has higher ionisation enthalpy than aluminium. Explain why?
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- Borax gets hydrolysed to give
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- Orthoboric acid on strong heating to red hot gives. metaboric acid bo...
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- The aqueous solution of borax is
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- Carborundum is
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- The high temperature polymers of silicon are called silicates silicon...
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- Which of the following is not the form of silica? cassiterite, cri...
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- The element having maximum abundance in earths crust is
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- Hybridisation of boron in B2H6 is -----
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- Boric acid is polymeric due to -----
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- The Elements of group 14 show ----- oxidation states
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- Boron is a : metal, non-metal, metalloid, alloy
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- Explain the action of heat on boric acid.
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- The compounds of boron with hydrogen are called : borides, boranes, di...
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- Orthoboric acid on strong heating to red hot gives. metaboric acid bo...
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- Glass is best described as a,: solid, liquid, supercooled liquid, ...
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- The aqueous solution of borax is
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