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Science - Chemistry

Read many objective multiple choice questions of Science - chemistry in English. Practise online thousands of questions related to Science - chemistry. You can check online answer and try mock tests for Science - chemistry Questions provided in English.

In an atom, the order of filling up of the orbitals is governed by 

  • a
  • b
  • c
  • d
  • OOPS, your answer is incorrect

Which one of the following is the correct sequence in increasing order of molecular weights of the hydrocarbons ?

  • a
  • b
  • c
  • d
  • OOPS, your answer is incorrect

Which one of the following is NOT radioactive ?

  • a
  • b
  • c
  • d
  • OOPS, your answer is incorrect

Most of the explosions in mines occur due to the mixing of 

  • a
  • b
  • c
  • d
  • OOPS, your answer is incorrect

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