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Sudden temperature fluctuation does not affect pyrex glass, because of its

A. Low co-efficient of expansion

B. High co-efficient of expansion

C. High melting point

D. Both (B) and (C)

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  3. Reverse osmosis is normally used for the
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  15. The most widely used coagulant for removing suspended impurities from water is
  16. Digestion of wood-base materials (for manufacture of pulp) is done to
  17. Na2CO3 is called
  18. 'Synthesis gas' meant for the synthesis of organic compound is a variable mixture of
  19. Dehydrogenation of ethyl benzene produces
  20. Solvay process is not used for the manufacture of potassium carbonate, because of the reason that potassium…
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  22. Pick out the wrong statement.
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