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Question
An inorganic compound (A) is made of two most occuring elements in the Earth's crust and has a polymeric tetrahedral network structure. With carbon, compound (A) produces a poisonous gas (B) which is the most stable diatomic molecule. Compounds (A) and (B) will be
Options:
A .  SiO2,CO2
B .  SiO2,CO
C .  SiC,CO
D .  SiO2,N2
Answer: Option B
:
B
SiO2+2CSi+2CO.

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