Question

A metal X which can be easily cut with a knife reacts with moisture to produce a gas Y which burns with popping sound. Here X and Y are-

Answer 1

Answer:

X - sodium (Na) metal

Y - hydrogen gas ( H2 gas )

is the correct answer and most correct answer

Explanation:

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Answer 2

Answer:

X=sodium Y=Hydrogen

Explanation:

2Na+2H2O=2NaOH+H2

sodium, lithium are some elements which are soft and are easily cut with knife

hydrogen gas burns with a pop sound..

hope it helps...