Skip to main content

Daily dose Solutions

Your one stop destination for solutions of daily dose on our Facebook page.



Correct Option : B
Hints: 
Amongst hexahalides of sulphur, only SF6 is exceptionally stable for steric reason.
In SCl6, smaller S cannot accomodate six larger Cl– ions.
PH5 does not exist as there is large difference in the energies of s, p and d orbitals of P and hence it does not undergo sp3d hybridisation.
NCl5 does not exist as there is no d-orbital with N.
BF6 3– does not exist as there is no vacant d-orbital in B and hence it cannot exceed its covalency beyond four.

Trending Articles of the Week

Local Coaching Institutes : Should you opt for them?

Really serious about cracking JEE and getting into the most prestigious institutes of our country i.e IIT's. Are coaching institutes at your city really capable of making you an IITian?  NOTE: This article is a summary of experiences of my friends who took coaching in classes XI and XII at their respective cities. They were from FITJEE, Vidyamandir Classes, Aakash, etc. Easy method of knowing the best coaching in your city... You need to be very cautious in choosing the right coaching available in your city. Believe Me ! It's really easy to find out which coaching is best for you. You just need to get feedback of various coaching institutes from your seniors. Some of the coaching classes like Vidyamandir Classes (VMC) in Delhi are excellent. However, a particular center of VMC in your city may or may not be good. Take account of other factors like time it will take for you to reach coaching from your home. How do coaching institutes in your city compar...

Etoos Video Lectures: Ultimate Self-Study Tool

Do you face difficulties in understanding concepts written in books? Do you live in a remote area, where there are no coaching classes available? Is it your dream to study from best faculty of Kota, without even going there? Would you like to study weak area’s of class XI again? This answer contains everything you need to know before investing a large amount of money in etoos video lectures. BUT WAIT, Why should you trust me? I have studied at Vibrant Academy in Kota. Because teachers here keep on changing institutes, I got a chance of studying from one of the best faculties of Etoos (MC Sir) in regular classroom. I found M.C. Sir to be best mathematics teacher in Vibrant Academy. I had myself Etoos lectures, as a substitute for poor teachers in my batch, or for revision purposes. My cousin cleared JEE Advanced 2017, and he used nothing except these lectures and the material provided. Whenever he had doubts, he used the amazing doubt clinic. Trust me, the is ABSOLUTELY NO DIFFE...

Concepts of Physics by H.C. Verma enough for IIT-JEE?

Thinking of buying Concepts of Physics, your decision might change after reading this article. Is HC Verma's Concepts of Physics enough for cracking JEE ?  From pros and cons to IITians strategy of solving this book, we've covered everything you'll ever need to know about this book. BONUS : Buying links are now available after the full review. Authored by Harish Chandra Verma, professor at IIT Kanpur; this book is a best-seller at an introductory college level. I've completely solved the book and I couldn't find even a single error in the book. Let's find out the why this book is so much popular among scholars. I have developed a somewhat different methodology of presenting physics to the students. Concepts of Physics is a translation of this methodology into a textbook. - H. C. Verma The first and foremost thing : this book is ONE OF A KIND and I would call it a MASTERPIECE. You learn different concepts by solving exercises which consists of...

Class-wise strategy for clearing JEE

Wondering if it the right time to start JEE preparation? How and where can you start studying, knowing that you’re heading in the right direction? Will you be able to accomplish what you want? Our team at IITians Way comprise of engineers (IITians and NITians) having vast experience. We have discussed some of the best techniques which will help you in accomplishing what you want. If you’re in class VI-VIII There’s really no need to start preparing for an exam that’s going to happen after five years. We know there are some coaching institutes which provide coaching for JEE right after V, they are a sheer wastage of time and money. It’s time for having fun and learning new stuff in life. Right now, you might not even be knowing whether you would like to pursue engineering or not? You may solve logical reasoning books (they’ll be a lot of fun and you’ll enjoy solving those) in your leisure time. Goodbye! See you after some years. If you’re in class IX or X We’re really gla...