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Orthoboric acid on strong heating to red...

Orthoboric acid on strong heating to red hot gives. metaboric acid borax boron tri oxide tetraboric acid

A

metaboric acid

B

borax

C

boron tri oxide

D

tetraboric acid

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The correct Answer is:
A
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V PUBLICATION-THE p - BLOCK ELEMENTS-QUESTION BANK
  1. Gallium has higher ionisation enthalpy than aluminium. Explain why?

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  2. Borax gets hydrolysed to give

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  3. Orthoboric acid on strong heating to red hot gives. metaboric acid bo...

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  4. The aqueous solution of borax is

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  5. Carborundum is

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  6. The high temperature polymers of silicon are called silicates silicon...

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  7. Which of the following is not the form of silica? cassiterite, cri...

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  8. The element having maximum abundance in earths crust is

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  9. Hybridisation of boron in B2H6 is -----

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  10. Boric acid is polymeric due to -----

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  11. The Elements of group 14 show ----- oxidation states

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  12. Boron is a : metal, non-metal, metalloid, alloy

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  13. Explain the action of heat on boric acid.

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  14. The compounds of boron with hydrogen are called : borides, boranes, di...

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  15. Orthoboric acid on strong heating to red hot gives. metaboric acid bo...

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  16. Glass is best described as a,: solid, liquid, supercooled liquid, ...

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  17. The aqueous solution of borax is

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  18. The allotropic form of carbon which is used for making lead of pencil...

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  19. The gas which combines with haemoglobin to damage is oxygen- carrying ...

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  20. The carbide which is used as abrasive is, (1)WC (2)CaC2 (3)Al4 C3 (...

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