Which of the following cannot be used for the preparation of soap?

A. oleic acid

B. acetic acid

C. palmitic acid

D. stearic acid

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  2. The alloy added in the preparation of steel contains
  3. The depletion of the ozone layer in the upper atmosphere is due to -extensive use of
  4. Which of the following act a both u oxidising and reducing agent?
  5. The gas used in balloons in the place of hydrogen is
  6. Isotopes differ in the number of
  7. The pure at form of iron is
  8. LSD is
  9. Two or more entirely different compounds having the same molecular formula are known as
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  11. The alloy which is extremely hard and resistant to acids is
  12. Metals are usually heavy. A light metal is
  13. The purest form of carbon is
  14. An element which is preserved under water is
  15. A metal which is extracted by thermal reduction is
  16. The main element used in the vulcani-sation of rubber is
  17. The earliest known acid is
  18. One of the ingredients of the paste on the side of a match box is
  19. Invar, used for making pendulums is an alloy of steel with
  20. The soaps used in shaving cream are
  21. The form of carbon used in decolourising sugar solution is
  22. The vitamin that is found in citrus fruits such as lemon and orange is
  23. Which of the following elements is not required for the healthy growth of plants?
  24. Which of the following la a very good supporter of combustion?
  25. Hard water does not lather well with soap because
  26. The substance preserved under water is
  27. Heated saw dust catches fire when a drop of concentrated nitric acid is added to it. This is due to
  28. Which of the following is a mixture?
  29. Gases have
  30. Which of the following can absorb gases quickly?