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The metal M reacts vigorously with water...

The metal M reacts vigorously with water to from a solution S and a gas G. The solution S turns red litmus to blue whereas gas G, which is lighter than air, burns with a pop sound. Metal M has a low melting point and it is used as a coolant in nuclear reactors.
(a) What is metal M ?
(b) What is solution S ? is it acidic or alkaline ?
(c ) What is gas G ?
(d) Write a balanced chemical equation for the reaction which takes place when metal M reacts with water.
(e) Is this reaction exothermic or endothermic ?

Text Solution

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The correct Answer is:
(a) Sodium, Na (b) Sodium hydroxide solution (NaOH solution), Alkaline (c ) Hydrogen, `H_(2)` (d) `2Na+2H_(2)Oto2NaOH+H_(2)` (e ) Exothermic
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