An element of group 14 forms two oxides one of which is highly poisonous and neutral. Other oxide can be easily liquefied and compressed to give a
solid which is used as a refrigerant under the name of drikold. The element and the oxides are
A.
$$Si,SiO,Si{O_2}$$
B.
$$Pb,PbO,Pb{O_2}$$
C.
$$C,CO,C{O_2}$$
D.
$$Sn,SnO,Sn{O_2}$$
Answer :
$$C,CO,C{O_2}$$
Solution :
$$C$$ forms two oxides $$CO$$ and $$C{O_2}.$$ $$CO$$ is neutral and poisonous. $$C{O_2}$$ can be compressed as a refrigerant dry ice or solid $$C{O_2}.$$ $$SiO$$ is unstable. $$SnO$$ and $$PbO$$ are amphoteric in nature.
Releted MCQ Question on Inorganic Chemistry >> P - Block Elements
Releted Question 1
The reddish brown coloured gas formed when nitric oxide is oxidised by air is