Collaborative Learning: CUBE whatsapp group discussions


CUBE’s Street Cricket Model using alternatives and at the same time, to get the same Spirit of the original Game of Science Thivim, Goa 1 January 2025 Photo mcarunan


[5:44 pm, 8/1/2025] Dhanraj: Is ER the right answer for this question?

[5:46 pm, 8/1/2025] Dinesh Datta CUBE: Ribosomes are not surrounded by a membrane at all. They are found floating free in the cytosol or attached to the endoplasmic reticulum (ER) and are composed of RNA and proteins.


Can we connect this with how does kanamycin affect the chloroplast?
What do you think @Theertha @Smiti @Sakshi and others


[10:38 am, 10/1/2025] Theertha: P have 3sp3 in its outermost cell, but it says P can have valency 3&5.How it possible? @Seethalakhmi @Chithra Mam @Shalu CUBE and others
[10:46 am, 10/1/2025] Dinesh Datta CUBE: What is atomic number of Phosphorous?
[10:53 am, 10/1/2025] Seethalakhmi: 15
[10:53 am, 10/1/2025] Dinesh Datta CUBE: Ever heard of VSEPR theory?
[10:54 am, 10/1/2025] Seethalakhmi: Hybridization
[10:55 am, 10/1/2025] Dinesh Datta CUBE: Yes.

In ATP,Phosphine(PH3),PCl3 etc it has trigonal pyramidal shape.

In PCl5,it takes trigonal bipyramidal shape,by extending it’s valency to 5,into empty 3d orbitals…

Sp3d hybridisation
[11:02 am, 10/1/2025] Dinesh Datta CUBE: Can you predict this hybridization of central atoms,in say, H20,CH4,NH3?

[11:53 am, 10/1/2025] Seethalakhmi:


[12:15 pm, 10/1/2025] Theertha: I was trying to understand the structure of ATP, where pi(H3PO4 came in picture).
[12:08 pm, 10/1/2025] Theertha: Thank you @Seethalakhmi for your drawing,that was easy to understand,@Dinesh Datta CUBE thank you for your explanations. I fully missed the bond formation between cl and P.

[12:13 pm, 10/1/2025] Arunan Sir: What is the Context? @Theertha
Let’s get more cubists involved.
[12:14 pm, 10/1/2025] Arunan Sir: Looks like, you had a TINKE moment.
Let’s all understand the context.:+1::handshake: