The metal that is present in Photo Films is

A. Silver

B. Magnesium

C. Platinium

D. Mercury

Please do not use chat terms. Example: avoid using "grt" instead of "great".

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  6. Quartz crystals normally used in quartz clocks etc. is chemically
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  21. Liquefied Petroleum gas (LPG) consists of mainly
  22. The hardest substance available on earth is
  23. The recent atomic weight scale is based on
  24. When a gas is turned into a liquid, the process is called
  25. Old-written material, which cannot be read easily can be read by
  26. Carbon tetrachloride fire extinguisher should not be used in closed room because it produces poisonous…
  27. Pollination by birds is called
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