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JAMB Chemistry 2013 Question 32

Question 32

Nitrogen and its Compounds

In the laboratory preparation of ammonia, the flask is placed in a slanting position so as to

  1. A.prevent condensed water from breaking the reaction flask.
  2. B.enable the proper mixing of the reactants in the flask.
  3. C.enhance the speed of the reaction.
  4. D.prevent formation of precipitate.
Show the answer and explanation

Answer: A (prevent condensed water from breaking the reaction flask.)

Explanation

Water formed in the reaction condenses near the mouth; tilting the flask stops it running back onto the hot glass and cracking it.