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Question

Question: Identify X in the reaction : \(\mathrm { X } + \underset { \text { (steam) } } { 2 \mathrm { H } _...

Identify X in the reaction :

X+2H2O (steam) ΔXO2+2H2\mathrm { X } + \underset { \text { (steam) } } { 2 \mathrm { H } _ { 2 } \mathrm { O } } \xrightarrow { \Delta } \mathrm { XO } _ { 2 } + 2 \mathrm { H } _ { 2 }

A

C

B

Si

C

Ge

D

Sn

Answer

Sn

Explanation

Solution

: Sn+2H2O Steam SnO2+2H2\mathrm { Sn } + \underset { \text { Steam } } { 2 \mathrm { H } _ { 2 } \mathrm { O } } \rightarrow \mathrm { SnO } _ { 2 } + 2 \mathrm { H } _ { 2 }

Tin decomposes steam to form tin dioxide and hydrogen gas.