Which of the following statements is not correct?
- ASilicon is extensively used as a semiconductor
- BCarborundum is $SiC$
- CSilicon occurs in free state in nature
- DMica contains the element silicon
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Similar Questions
When $MnO_2$ and $H_2SO_4$ are added to a salt $(A)$,the greenish yellow gas liberated indicates that salt $(A)$ is:
An oxide of an element is a gas and dissolves in water to give an acidic solution. The element belongs to:
Which of the following species is not stable?
Easy
View SolutionAssertion : $PbI_4$ is a stable compound.
Reason : Iodide stabilizes higher oxidation state.
Reason : Iodide stabilizes higher oxidation state.
MediumAIIMS 2003
View SolutionExplain the following:
$(a)$ $CO_2$ is a gas whereas $SiO_2$ is a solid.
$(b)$ Silicon forms $SiF_6^{2-}$ ion whereas corresponding fluoro compound of carbon is not known.
$(a)$ $CO_2$ is a gas whereas $SiO_2$ is a solid.
$(b)$ Silicon forms $SiF_6^{2-}$ ion whereas corresponding fluoro compound of carbon is not known.
Difficult
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