+91-8076753736 support@wiredfaculty.com
logo
logo

Sponsor Area

The P-Block Elements

Question
CBSEENCH12011140
Wired Faculty App

Which of the following is a polar molecule?

  • BF3

  • SF4

  • SiF4

  • XeF4

Solution

B.

SF4

Symmetrical molecules are generally non-polar although they have polar bonds. This is because bond dipole on one bond is cancelled by that of the other. BF3,  SiF4 and XeF4 being symmetrical as non-polar. SF4 is unsymmetrical because of the presence of a lone pair of electrons. Due to which it is a polar molecule. 

Some More Questions From The p-Block Elements Chapter

Why are pentahalides more covalent than trihalides?

Why is BiH3 the strongest reducing agent amongst all the hydrides of Group 15 elements?

Why is N2 less reactive at room temperature?

Mention the conditions required to maximise the yield of ammonia.

What is the covalency of nitrogen in N2O5?

Bond angle in PH4+ is higher than that in PH3. Why?

Write a balanced equation for the hydrolytic reactions PCl5 in heavy water.

Mock Test Series

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation