ICSE − Q & A

Can anyone pls tell me the ans of this question- Which solid evolves a coloured gas on prolonged exposure to air?

list of colors of metallic salts and other important compounds colors' (except metallic hydroxides)
plz it would be a great help!

Katrina (K)
Ne (Na)
Car(Ca)
Mangi (Mg)
Alto (Al)
Zen (Zn)
Ferrari (Fe)
Haay(oh!) (H)
Fir
Kyun (Cu)
Mili (Hg)
Silver(Ag)
Plated (Pt)
Audi(Au)
The best one ever!!!
this is as per Dr. Dalal

What does vitriol mean? (Just a doubt)

can we extract NH3 from NH4OH ? If yes how ?

Explain why polar covalent compounds can conduct electricity in the aqueous state.

+ 1 more questions by olaf  

What is the difference between electron affinity and electronegativity?
asked by 45Trolaf (olaf) 7 years ago
2

why is it tht in the activity series Ca comes after Na but in the electrochemical series Na comes after Ca?

+ 1 more questions by akashskyash007  

JUST A CLARIFICATION: Cud someone answer which group the lanthanides and actinides belong? Viraf says 1B to 7B and 8 Pg 6 Someone said here it is 3 some site says its between group 2 and group 3 and has not been laid by IUPAC hence does not belong to any group. I am totally confused.
asked by Akash Ashok (akashskyash007) 7 years ago
2

if u have any difficulty for remembering the activity series of metals here is an easy way for remembering that:
please-k
stop-Na
calling-Ca
me-Mg
a-Al
zebra-Zn 
in -Fe
library-Pb
hello -H
call -Cu
me-Hg
something-Ag
good-Au
hope this helped u:)

Guys for syllabus  don't getso confused if u have viraj dalal textbook it will be given at the beginning of every chapter don't just get confused by asking 10 people on res paper.10 people give u 10 answers and confuse u so just follow the book..

Which metal will form ions easily-------Cu or Fe??
Give reasons as well....