ICSE − Q & A

guys some imp stuff:
amphoteric elements are zinc and aluminium
sodium does not float in water though it has high density, can be cut with a knife,not sonorous
if a black element is asked the ans is copper or lead.
reducing aagent between cuoand cu is ammonia'
any Na(metal)O2 is colourles and soluble
PbO is always  yellow.
liquid at room temp is mercury

Whats the difference between Hygroscopic substances and deliquescent substances?

please check if these are correct:
largest atomic size - caesium
smallest atomic size - fluorine
most metallic character and most reactive metal- francium
most non-metallic character and most reactive non-metal - fluorine
highest IP - helium
lowest IP - caesium
highest EA - chlorine
lowest EA - caesium
highest electronegativity - fluorine 
lowest electronegativity - caesium
Source : Selina
If any correction has to be made please inform me in the comments

+ 1 more questions by catercousin10  

By what chemical process is the impurity present in iron, removed in steel making?
asked by Tanisha Vats (catercousin10) 7 years ago
4

Well guys, I've noticed that many of of y'all are getting really disturbed by the kind of content the user, 'whoeven' is posting. It's kind of funny as it teaches us a life lesson that we all are gonna sooner or later learn on our own. This world is filled with an immense number of people coming from every single background possible. There are people who will warm our heart, inspire us, and leave an everlasting impression on us. On the other hand, there are an equal amount of psychopaths, perverts, and pedophiles who are gonna batter us down with insults, assaults, and negativity. The tough part is making it through. But we're determined, smart, and hardworking people and we will show our level of maturity by not going down to the same level. I'm not trying to preach or be philosophical. It's just disheartening to see the amount of people disturbed by this. Remember, in a couple of years you're gonna live the life you dreamed about and make your family, most importantly, yourself proud. So don't waste you're time or energy on a guy who's probably gonna spend the rest of his lifetime in his parent's basement. He's probably gonna post some kind of sick drawing or picture to this as well, but  'whoeven', I think I speak for everyone when I say this...... We are absolutely unfazed. 

All the best for the Chem exam lads.

name a gas whose solution in water is alkaline?????

how can u hack into someones respaper account.?

+ 1 more questions by yoboyyy  

is pyrolisis there in syllabus?
asked by Roshan Geo Roy (yoboyyy) 7 years ago
4

we need to ignore ppl like whoeven
When we  walk through the streets dog barks at us . Do we ans them??? According to me none of us reply to dog's barks and ppl like whoeven is worse than a dog 
So let us focus on our chem paper and ignore such ppl because it is our life
All the best for ppl who appear for chemistry board exam.

Plot twist : whoeven is sdfg and is fooling us

Hey , why is the electrolysis of water considered as catalysis?

Please someone remove whoeven