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Compounds of nitrogen with metals are called

A. nitrates

B. nitrites

C. hyponitrates

D. nitrides

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  1. Refined petroleum is decolourised by
  2. In photography, the compound or nitrogen used is
  3. Which of the following is not an alloy of copper?
  4. The best specimen for drinking purposes is
  5. In the mouth, starch is converted into ______ by the action of saliva.
  6. Artificial diamonds were produced by
  7. The alloy which is extremely hard and resistant to acids is
  8. Nylon is made from
  9. Iodine in alcohol is known as
  10. A mixture of carbon monoxide and hydrogen is
  11. Which of the following is baking soda?
  12. Ozone occurs in the upper layers of air in the atmosphere because
  13. ________ is left behind after distillation of petroleum.
  14. Water always contains hydrogen and oxygen in the ratio 1:8 by weight. This is in accordance with the
  15. Clark's method for removal of temporary hardness in water uses
  16. A non-metal which is a good conductor or heat and electricity is
  17. Which of the following is not a characteristic of potable water?
  18. Which among the following is a metalloid?
  19. Fructose is also called
  20. The science which deals with the chemistry of life processes is known as
  21. The substance preserved under water is
  22. The carbon cycle ensures that
  23. Which of the following is used as an illuminant?
  24. Which of the following cannot be used for the preparation of soap?
  25. Which among the following is a local anaesthetic?
  26. The addition of a neutron to the nucleus of an atom
  27. Stainless steel contains steel and
  28. Which of the following is used in fuel to propel rockets?
  29. Oxalic acid is used in the manufacture of
  30. Which of the following cannot be used as fuel?