Hydrogen can be prepared with help or cold water. Give a reaction of hydrogen with a monovalent metal.

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Solution

$2 N a + {2 H}_{2} O \to 2 N a O H + H_{2}$

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Similar questions

Hydrogen can be prepared with the help of cold water. Give a reaction of hydrogen with :

(a) a monovalent metal

(b) a divalent metal.

Name the following:

(a) Two metals which give hydrogen with cold water.

(b) A metal which liberates hydrogen only when ste am is passed over red hot metal.

(c)The process in which oxygen is added or hydro gen is removed.

(d)A metallic oxide which can be reduced into metal by hydrogen.

(a) Metal + Oxygen $\to$ Metal oxide

(b) Metal + Cold water or hot water or steam $\to$ Metal hydroxide + Hydrogen

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