ICSE − Q & A

Whats d colour of sodium meta aluminate...in selina ch 4 concise chemistry pg 61..its given colourless and the very next pg its given white.

+ 1 more questions by utkarsh3107  

Guys...can u plz ans this....give the source of reactants used in ostwald process
asked by Utkarsh Sharma (utkarsh3107) 7 years ago
3

what happened in may
the last leaf

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+ 1 more questions by rishabsaphal  

anyone like me ??.......watching movies...??? i just watched yeh jawaani hai deewani,singham returns,om shanti om......lol
asked by Turbanator (rishabsaphal) 7 years ago
2

Are radioactive elements to be excluded when they ask for ip,ea,en etc

Could someone please verify this?
1)Electrolysis of dilute NaCl solution.
At cathode: H+ ions discharged.
At anode: OH- ions discharged.
2)Electrolysis of concentrated NaCl solution.
At cathode:H+ ions discharged.
At anode: Cl- ions discharged.
3) Largest atomic radius in group 1- Francium. Group 2- Radium.
4) Most reactive element/highest electropositivity/least EA/ least IP/ most metallic character in group 1- cesium (not Francium) and in group 2-strontium (not radium).
Thank you!

Is the solubility - temperature graph there for us (it is given in selina). If there then someone pls pls pls explain it to me.

+ 1 more questions by shivaanee22  

In the book it is written that all K+ salts are soluble then why it is given that KHCO3 is not soluble?
asked by Shivaanee sharma (shivaanee22) 7 years ago
5

I have a doubt, might be silly! :
Ions are atoms which have a net charge on them. It means that they have gained/lost electrons to achieve a stable electronic configuration. Now, they are stable. Then, why do they again gain/lose electrons to form a neutral atom?. Reply ASAP.

What is the reaction of passing Chlorine through AgNO3 solution?

is promoter of contact process is there in syllabus

1)Why shud a deliquescent alkali not be used for the preparation of ammonia?
2)Does an exothermic reaction take place when the products have more energy than the reactants or vice versa?
3)How does decreasing the pressure help in concentration of HNO3?
4)Which alloy is used to make magnets and what is its composition?
5)Is pig iron an alloy or just incompletely purified iron which is converted to steel.Give reason.
6)Colour of FeCl3 soln.?
Can anyone answer these questions?