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Which of the following characters is not shown by hydrogen

A. It burns in air to form water

B. It supports combustion

C. It readily combines with fluorine and chlorine

D. It combines with almost all metals forming hydrides

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  1. Water has maximum density at
  2. The formula of Plaster of Paris is
  3. Rust is
  4. The accumulation of stress along the boundaries of lithospheric plates results in which of the following?
  5. The solar eclipse occurs when
  6. Which of the following is in liquid form at room temperature ?
  7. Old-written material, which cannot be read easily can be read by
  8. The intencity of Earthquakes is measured on
  9. Which of the following is the lightest metal ?
  10. The element present in the largest amount in rocks and minerals is
  11. The location and energy of an electron in an atom can be specified by
  12. The most important ore of Aluminium is
  13. The Panda belongs to the same family as that of
  14. The recent atomic weight scale is based on
  15. Which of the following parts of the sun is easily visible only during a total solar eclipse?
  16. Brass gets discoloured in air due to the presence of which gas in air
  17. The property of a substance to absorb moisture from the air on exposure is called
  18. Glass is made from the mixture of
  19. Quartz crystals normally used in quartz clocks etc. is chemically
  20. Polythene is industrially prepared by the polymerisation of
  21. What is the unit for measuring the pitch or frequency of sound ?
  22. The marine animal called dugong which is vulnerable to extinction is a/an
  23. The major ingredient of leather is
  24. The metal that is present in Photo Films is
  25. The colour of Emerald is
  26. Which of the following characters is not shown by hydrogen
  27. In a certain electronic circuit the output is positive if input 1 is positive and input 2 is zero. If…
  28. When a gas is turned into a liquid, the process is called
  29. Which of the following elements is obtained from sea weeds ?
  30. Earth's seasons are caused by which of the following?