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Name Two Metals Which React Violently with Cold Eater. Write Any Three Observations You Would Make When Such a Metal is Dropped into Water. - Science

Name two metals which react violently with cold eater. Write any three observations you would make when such a metal is dropped into water.

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Sodium and potassium are two metals that react violently with cold water.

Three observations when such a metal is dropped in water are:

  1. Reaction is highly exothermic i.e. a huge amount of heat is produced.
  2. Hydrogen gas is evolved in the reaction.
  3. A small explosion takes place because the heat produced in the reaction burns the hydrogen gas. Hydrogen can be identified by the 'pop' sound it makes while burning.
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Lakhmir Singh Class 10 Chemistry (Science)
Chapter 3 Metals and Non-metals
Q 37 | Page 133
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