Physical, organic and inorganic doubts, answered by students.
omg okay so this is bugging me since last week. NCERT says the strength of hydrogen bond follows F–H···F O–H···O N–H···N. So HF should have the strongest hydrogen bonding, right? But boiling points: water is 373 K and HF
I colour-coded the oxide trend for period 3 in my notes: blue for basic Na2O, MgO , green for amphoteric Al2O3 , red for acidic SiO2, P4O10, SO3, Cl2O7 . NCERT states the trend but I want to understand the reason, becaus
bhai raat ke 1 baj rahe hain aur mera numerical nahi ban raha, so asking here. Question I was solving: 0.5 g of an organic compound was Kjeldahl digested, ammonia evolved was passed into 15 mL of 0.1 M H 2SO 4 , and the
Doing the Genesis of Periodic Classification part of NCERT and my notes are a mess. I have Dobereiner's triads, Newlands' octaves, Lothar Meyer's curve, Mendeleev and Moseley all squeezed on one page and I keep mixing up
Normally I do not have trouble with this chapter but a classification question in our last test has made me doubt myself. The question was: 'Which of the following is a homogeneous mixture?' with options air, brass, suga
Playing football in the evening and thinking about s-block in the shower is not a great combo but here I am. Something doesn't add up for me in alkali metal trends. Ionisation enthalpy goes down the group: Li 520, Na 496
Between football practice and guitar I got through the intermolecular forces section of States of Matter and there are two things I can't settle. First, boiling points of noble gases go up as we go down the group, helium
Third attempt, so I'm going back to the first chapter. When you've read the same line three times it stops being text and becomes wallpaper, so this time I want to rebuild each experiment instead of memorising. What I re
ok so I'm making a checklist for the Organic Basic Principles chapter and I got stuck on page one, which is embarrassing. Carbon's ground state is 1s^2\,2s^2\,2p^2 , so only two unpaired electrons. Then why is it tetrava
I love how aldehydes and ketones have those neat names, until a molecule has two functional groups and I forget which one is the boss. Example: OHC-CH 2-CO-CH 3 . Is it 3-oxobutanal or 1-oxo... or something with "al-one"
I've been colour coding the Hydrogen chapter and the very first heading has me stuck. Hydrogen's configuration is 1s^1 so it looks like an alkali metal, it loses one electron to give H^+ , and it's placed in group 1. But
Cheap tricks for exam are my thing but this topic has no trick, and I want to actually understand it because it keeps showing up. NCERT explains rusting as a tiny electrochemical cell on the surface of iron. A spot on th
