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Chemistry

General Knowledge on Chemistry

(Click on suggested Options to select the answer | Color Red means : Wrong & Green Means: Correct)
131. Which one of the following glasses from the basis of re-writable CD and DVD solid - state memory technology?
132. Which one of the following is the softest?
133. In terms of magnetic properties oxygen belongs to
134. What is the jeweller's rouge ?
135. Which one of the following pairs of metals constitutes the lightest metal and the heaviest metal, respectively?
136. Which one among the following polymers is used for making bullet-proof material?
137. Which one among the following statements is correct?
  • A. All bases are alkalis
  • B. None of the basis is alkali
  • C. There are no more bases except the alkalis
  • D. All alkalis are bases but all bases are not alkalis
  • Check Answer | Discussion
138. Creation of something from nothing is against the law of
  • A. constant proportions
  • B. conservation of mass-energy
  • C. multiple proportions
  • D. conservation of momentum
  • Check Answer | Discussion
139. Which is the most reactive metal
140. Recently discovered, the purest from of carbon is

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