Water has maximum density at

A. 0°C

B. -4°C

C. 100°C

D. 4°C

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  1. The type of glass used in making prisms and lenses is
  2. According to Daltons atomic theory the smallest particle which can exist independently is
  3. Epoxy resins is used as
  4. The most important ore of Aluminium is
  5. The marine animal called dugong which is vulnerable to extinction is a/an
  6. Which of the following elements is non-radioactive?
  7. The solar eclipse occurs when
  8. Which of the following is commonly called a polyamide ?
  9. The major ingredient of leather is
  10. Lightening cause rainfall because
  11. Which of the following elements is a metal
  12. The chemial name of Uria is
  13. In a certain electronic circuit the output is positive if input 1 is positive and input 2 is zero. If…
  14. One fathom is equal to
  15. Permanent hardness of water can be removed by adding
  16. Old-written material, which cannot be read easily can be read by
  17. The oxide of Nitrogen used in medicine as anaesthetic is
  18. The speed of light with the rise in the temperature of the medium
  19. Apparatus invented by Archimedes is :
  20. Which of the following is most likely to cause a rise in the average temperature of earth's atmosphere…
  21. Polythene is industrially prepared by the polymerisation of
  22. Which of the following characters is not shown by hydrogen
  23. Pollination by birds is called
  24. Which of the following is the lightest metal ?
  25. The hardest substance available on earth is
  26. The formula of Plaster of Paris is
  27. What is the unit for measuring the pitch or frequency of sound ?
  28. Liquefied Petroleum gas (LPG) consists of mainly
  29. Glass is made from the mixture of
  30. In an atomic nucleus, neutrons and protons are held together by