Q. 37

Name two metals which react violently with cold water. Write any three observations you would make when such a metal is dropped into water. How would you identify the gas evolved, if any, during the reaction?

Answer :

Two metals which react violently with cold water are Sodium and Potassium. The three observation made during that time are:-

1) Little explosions takes place on the surface of water and ultimately catches fire as the metal moves to the surface of water.

2) A pop sound is produced indicating that it is hydrogen.

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