AP EAMCET · Chemistry · p Block Elements (Group 13 & 14)
Identify the correct statements from the following.
i. Melting points and iviling points of group 13 elements are much higher than those of corresponding group 14 elements
ii. SiO only exists at high temperatures
iii. \(\mathrm{PbI}_4\) does not exist
iv. Buckminster fullerene contain twelve 6-membered carbon rings and twenty 5 - membered carbon rings.
- A i, iii only
- B ii, iii, iv only
- C ii, iii only
- D i, iv only
Answer & Solution
Correct Answer
(C) ii, iii only
Step-by-step Solution
Detailed explanation
The melting and boiling points of group 13 elements are lower than those of corresponding group 14 elements due to higher atomic masses and greater number of bonds between the atoms of group 14 elements. Thus, (i) is incorrect. \(\mathrm{SiO}\) is less stable than…
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