An inorganic compound (A) made of the two mos | vedclass

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(B) The two most abundant elements in the Earth's crust are oxygen and silicon. The compound $(A)$ formed by these elements is silicon dioxide $(SiO_2

Vedclass · Accepted Answer

$SiO_2, CO$

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(B) The two most abundant elements in the Earth's crust are oxygen and silicon. The compound $(A)$ formed by these elements is silicon dioxide $(SiO_2)$,which is widely used in building construction (e.g.,in sand and concrete).When silicon dioxide $(SiO_2)$ reacts with carbon at high temperatures,it undergoes a reduction reaction:$SiO_2 + 3C \xrightarrow{\Delta} SiC + 2CO$Here,$(B)$ is carbon monoxide $(CO)$,which is a poisonous,stable diatomic gas.

Column $I$	Column $II$
$A$. Silica gel	$i$. Transistor
$B$. Silicon	$ii$. Ion-exchanger
$C$. Silicone	$iii$. Drying agent
$D$. Silicate	$iv$. Sealant

An inorganic compound $(A)$ made of the two most abundant elements in the Earth's crust is used in building construction. When $(A)$ reacts with carbon,it forms a poisonous gas $(B)$,which is a very stable diatomic molecule. Identify compounds $(A)$ and $(B)$.

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