ICSE − Q & A

M is a metal above h2 in the activity series and it's oxide has the formula M2O. The oxide when dissolved in water forms the corresponding Hydroxide which is a good conductor of electricity in the above context answer the following : 1) how many electrons are there in the outermost shell of M 2) name the group to which M belongs 3) state the reactions taking place at the cathode

Suitable term for : 
1) acid with 2 replaceable hydrogen atoms
2) A salt which contains water of crystallization

+ 3 more questions by qwerty6699  

why is the argon atom bigger than the chlorine atom?
asked by Qwerty (qwerty6699) 7 years ago
1

equation for lead with hot conc. caustic potash??
asked by Qwerty (qwerty6699) 7 years ago
1

test to distinguish between 1) ammonium hydroxide and sodium hydroxide 2) sodium carbonate and sodium bicarbonate
asked by Qwerty (qwerty6699) 7 years ago
1

here is some more imp stuff:

reactive metals like sodium and potassium is kept in kerosene oil as they react with moisture and air
process used for enrichment of sulphide ores- froth floatation
formula of slag-casio3
formula of gangue-sio2
flux-caco3
when a mixture of AL powder and iron oxide is ignited , the latter is reduced to metal and the process is called aluminothermy.

+ 1 more questions by alestaarems  

name a gas whose solution in water is alkaline?????
asked by Alesta Bobby (alestaarems) 7 years ago
1

whoeven sould just stfu or else gtfoutta here !

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

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.

how can u hack into someones respaper account.?

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.