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

Should you go to Kota / Hyderabad for JEE/NEET

When it comes to Kota, I'm sure you've heard enough about coaching industry flourishing in Kota and Hyderabad.  You might be wandering... Is it really easy for someone to clear JEE or NEET after taking coaching at Kota?  Should you go to Kota/Hyderabad or prepare at your own city...? Will going to Kota increase your JEE score if you take a drop? And today I have something for you that will make you feel like you know everything about these cities without even being there. No one will ever tell you these things about Kota. QUALITY EDUCATION Lakhs of parents send their children to Kota and Hyderabad by spending hard earned cash. Obviously there is something special which made parents make such a huge investment on their children. Believe it or not, the quality of education you get in these cities is exceptional but it is something that must be taught at school level. Many of these things are simply skipped because they are not asked in board exams...

Books recommended by IITians for JEE Mains and Advanced

Do you want to know the best material out there? Can the books you study from really help you in getting an under 1000 ranks in JEE? Is it possible to secure a good rank just by reading books? It doesn't matter whether you are planning to prepare solely from books or you are taking coaching classes (as I did). Using the books I've listed will surely give you an edge over others. Let's find out...  Almost every book written for JEE claims to be the best book out there in the market. However, I DO NOT AGREE WITH THEM. It requires a lot of time, effort and dedication to completely solve a book. These books helped me in flying past the competition, unfortunately not all the books I owned have made it to the list. It's safe to assume that the books not mentioned here are not worth buying and we shouldn't waste any time on that. Your time is precious, and I would advise you to seek help from your seniors or this blog for finding out which books to buy withou...

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...