Mild steel contains

A. iron with very low percentage of carbon

B. iron with high percentage of carbon

C. iron and chromium

D. iron and manganese

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  1. Two or more entirely different compounds having the same molecular formula are known as
  2. The gas used in balloons in the place of hydrogen is
  3. The fertilizer which has the largest percentage of nitrogen is
  4. The modern system of symbols was evolved by
  5. Chloroform used as anaesthetic should be preserved In the dark in tightly stoppered bottles because…
  6. Compounds containing only carbon and hydrogen are called
  7. The scientist associated with the discovery of the nucleus was
  8. Hydrogen gas has
  9. Which of the following is a Bleaching agent?
  10. Which of the following is an essential constituent of acids?
  11. Refined petroleum is decolourised by
  12. In the making of jewels, gold is usually mixed with
  13. Ascorbic acid is the chemical name for
  14. The substance most abundantly found in sea water is
  15. The discoverer of chloroform was
  16. Which one of the following is used for dry cleaning?
  17. Proteins are polymerisation products of
  18. The kinetic energy of gas molecules
  19. An example of thermo setting plastics is
  20. The sugar which is used in silvering mirrors is
  21. The non-metal which has a shining appearance is
  22. Real gases tend to become ideal Under
  23. Methylated spirit is a mixture of
  24. Even as early as 3000 BC glass was known to the
  25. Which one of the following metals is used to extract another metal?
  26. The pure at form of iron is
  27. Heated saw dust catches fire when a drop of concentrated nitric acid is added to it. This is due to
  28. Beri-beri is caused by deficiency of Vitamin
  29. One of the ingredients of the paste on the side of a match box is
  30. The depletion of the ozone layer in the upper atmosphere is due to -extensive use of