Chemistry, asked by tziwei28, 1 year ago

Which of the following metals react with steam but not with cold water, to give hydrogen gas?

A) calcium
B) copper
C) iron
D) potassium

Why is the answer Iron and not copper? I thought that copper is very below all the above metals in the Reactivity Series...

Answers

Answered by Anonymous
1

Answer:

c) iron

why iron :- bcz iron only reacts with steam while copper is in below of reactivity series so it is not that much reactive.

Answered by YameshPant
1

Answer:

iron

Explanation:

K

Na

Ba

Ca

Mg

Al

Zn

Fe

Ni

Sn

Pd

H

Cu

Hg

Ah

Au

Pt

you can see that iron is more reactive than hydrogen but copper is less reactive than hydrogen. so iron will displace hydrogen but copper cannot.

Fe + H2O(g)---->reaction take place

CU + H2O( g)--->no reaction

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