Water has maximum density at

A. 0°C

B. -4°C

C. 100°C

D. 4°C

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  1. Which of the following characters is not shown by hydrogen
  2. Which of the following parts of the sun is easily visible only during a total solar eclipse?
  3. The formula of Plaster of Paris is
  4. The colour of Emerald is
  5. The major ingredient of leather is
  6. Earth's seasons are caused by which of the following?
  7. The oxide of Nitrogen used in medicine as anaesthetic is
  8. When a gas is turned into a liquid, the process is called
  9. The fastest-running terrestrial animal is
  10. The removal of top soil by water or wind is called
  11. One fathom is equal to
  12. Glass is made from the mixture of
  13. Water has maximum density at
  14. The Panda belongs to the same family as that of
  15. Cell membrane is
  16. Which of the following is commonly called a polyamide ?
  17. Which of the following is most likely to cause a rise in the average temperature of earth's atmosphere…
  18. The solar eclipse occurs when
  19. Which of the following items will be attracted to the north pole of a permanent magnet by a magnet force?
  20. The intencity of Earthquakes is measured on
  21. The property of a substance to absorb moisture from the air on exposure is called
  22. Apparatus invented by Archimedes is :
  23. The fastest acting enzyme in the biological kingdom is
  24. Liquefied Petroleum gas (LPG) consists of mainly
  25. Which of the following elements is obtained from sea weeds ?
  26. Which of the following is in liquid form at room temperature ?
  27. The element present in the largest amount in rocks and minerals is
  28. The marine animal called dugong which is vulnerable to extinction is a/an
  29. The metal used in storage batteries
  30. The hardest substance available on earth is