Everyday Science MCQs
Q In network of silica (SiO2) each silicon atom is surrounded by _____________ atoms of osygen?
  • A A. 4
  • B B. 2
  • C C. 1
  • D D. 6
Previous Tincal is a mineral of___________________?
Next Orthoboric acid is 2.6% soluble in water at 40?C and __…
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