Question

X metal reacts vigorously with water to produce Y gas which burns with a Pop sound. identify X and Y .​

Answer 1

X can be any Alkali metal like Na, K, Rb etc

Most likely it will be Na

The gas Y that is produce which burns with a pop sound is Hydrogen (H2)

X = Na

Y = H

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Answer 2

Answer:

X = Na

Y = Hydrogen gas

Explanation:

hydrogen gas is the gas which produces pop sound when burns.

Sodium is a alkaline metal.