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Chemistry Questions and Answers

177. Bakelite is obtained from
 
  • A. phenol and benzaldehyde
  • B. phenol and acetaldehyde
  • C. phenol and acetone
  • D. phenol and formaldehyde
 
 
178. The rays that do not contain the material particles are
 
  • A. gamma
  • B. alpha
  • C. beta
  • D. positive
 
179. Acetyl salicylic acid is commonly used as
 
  • A. tear gas
  • B. a fertilizer
  • C. a pain killer
  • D. a sedative
 
180. Which of the following metals is in liquid state at normal room temperature?
 
  • A. sodium
  • B. radon
  • C. gallium
  • D. silicon