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Super critical CO2 is used as-...

Super critical `CO_2` is used as-

A

dry ice

B

fire extinguisher

C

a solvent for the extraction of organic compounds from natural sources

D

inert solvent in various reactions

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The correct Answer is:
C
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CHHAYA PUBLICATION-SOME p-BLOCK ELEMENTS-MCQ HOTSPOT (Single Correct Type)
  1. Atomic radius of Ga is slightly less than that of Al. The reason is-

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  2. Carbon does not form complexes, because-

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  3. Super critical CO2 is used as-

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  4. Stability of + 1 oxidation state increases in the sequence-

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  5. Which of the following is acidic in nature-

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  6. Correct order of first ionisation enthalpy for Gr-13 elements is-

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  7. Which of the following elements is not likely to be the central atom i...

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  8. Tendency of catenation in Gr-14 elements follows the order-

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  9. The repeating structural unit in silicone is-

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  10. Which of the following allotropic forms of carbon is isomorphous with ...

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  11. The shape and hybridisation of B-atom of BH4^(-) is-

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  12. Germanium is transparent in-

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  13. The chain length of silicone polymer can be controlled by adding-

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  14. Higher B-F (in BF3) bond dissociation energy as compared to that of C-...

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  15. Reaction of diborane with ammonia initially gives-

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  16. CuO + B2O3 underset("flame")overset("Oxidising ")to X underset("flame ...

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  17. Correct formula of borax is-

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  18. Which of the following statements is correct-

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  19. SiCl4 gets readily hydrolysed but C Cl4 does not, because-

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  20. PbCl4 exists but PbBr4 and PbI4 do not, because-

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