AP EAMCET · Chemistry · p Block Elements (Group 13 & 14)
Which one of the following statements is not correct?
- A In \(\mathrm{CO}_2\) molecule, carbon hybridisation is \(s p\).
- B Fullerenes are made by heating graphite in an electric arc in the presence of argon gas.
- C Both \(\left[\mathrm{SiF}_6\right]^{2-}\) and \(\left[\mathrm{SiCl}_6\right]^{2-}\) ions are known.
- D In CO molecule, there are one 'sigma' \((\sigma)\) and two "pi" \((\pi)\) bonds.
Answer & Solution
Correct Answer
(C) Both \(\left[\mathrm{SiF}_6\right]^{2-}\) and \(\left[\mathrm{SiCl}_6\right]^{2-}\) ions are known.
Step-by-step Solution
Detailed explanation
\(\left[\mathrm{SiF}_6\right]^{2-}\) is known to exist but due to large size of chlorine \((\mathrm{Cl})\) atom, \(\left[\mathrm{SiCl}_6\right]^{2-}\) ions can not known.
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