30 October 2014

Chemical Combinations - Online Mcqs Test - Chemistry IX

Chemistry 9th Class MCQs – Chemical Combinations - IX

Chemical Combinations – Online Mcqs Test (25 Mcqs)

1/25
jQuizMe
Mass can neither be created nor destroyed during a chemical reaction, is the law of
  1. conservation of mass
  2. reciprocal proportion
  3. constant composition
  4. multiple proportion