ICSE − Q & A

I have some doubts:
1)State the group number of the group number of  the group which has 3 columns of elements.
2)Name an acid solid in nature.
3)Is Iron(II) Sulphate soluble in water?
4)What is the molecular formula of sodium zeolite?Is it soluble in water?
5)Is the colour of Iron (III) Chloride reddish-brown or yellow?
6)Viraf J Dalal workbook Pg 42 3.(6) Solid sodium chloride contains ions ryt(they havent mentioned free anywhere)
7)Name a nonmetal which volatizes at low temperatures and burns with a pale blue flame.(Is this hydrogen?)
8)Starting from aluminium how would u prepare a dil. acid which gives a white ppt with barium sulphate the precipitate being insoluble in all dil. acids?(Isnt BaSO4 already a ppt?)
9)Which gas turns alkaline pyrogallol soln brown?Cud u give a rxn if possible?
10)Zinc is used in voltaic cells as  cathode.In voltaic cells cathode means +ve  terminal right?
11)Which alloy of copper is used in hardware and scientific instruments?
12)Which alloy of aluminium is used to make the beams of a balance?
13)Why is amalgamated sodium preferred to  normal sodium for preparation of hydrogen?
14)Why is zinc added to copper in the right proportion for manufacture of screws?
15)Electric wires of nichrome are preferred to copper wires for specific applications.Give Reason.
Cud someone pls answer these questions?

name the gas that is most en among  all the elements

Plzz answer them
1)State the reaction when a candle in burnt in a jar full of chlorine
2)State the obsveration when a defragating spoon with burning turpentine is lowered                           into a jar of chlorine.
3)Give reason why sulphur dioxide and not chlorine must be used for bleaching silk
$)Name a colourless gas(other than oxygen) which rekindles a glowing splinter.

Can u give d reaction for ammonium dichromate being heated?

I guess u all should use ur gmail account instead of having a respaper account ......b careful of people around u...

why is sai taking my name for sdfg? i didnt trouble him....jst one boy messaged me that real name of sdfg is xyz,so i got excited i commented in q and ans column.i am sorry for that too

+ 1 more questions by 1478  

darr lag raha hai kahi ek tough paper na aae chem ka.....last years jaise paper ho toh tension nahi.
asked by . (1478) 7 years ago
3

- whats the test for nitrogen 
 - whats the observation of reduction of CuO using ammonia?

+ 2 more questions by sam_01  

what isomers are in our syllabus?
asked by Samyukta Narasimhan (sam_01) 7 years ago
1

name the ions formed when CH3COOH ionizes in aqueous solution
asked by Samyukta Narasimhan (sam_01) 7 years ago
2

Which element has the highest electron affinity?
(I know its Chlorine, but accor. to trend, it should be fluorine. So what to write?

Also, Zn forms anode/cathode of dry cell?
(Accor. to Viraf Dalal TB, its cathode, but on google, its anode everywhere!!)

Chemistry and Bio are the shortest papers attempt all questions and then also u will have enough time for revision and checking

*Huge notice coming up*

Attention guys,
I am posting this because sdfg has decided not to come to this page again.

Sdfg is NOT whoeven.

Sdfg is the real one who is there on the top contributors list of respaper.com/icse. whoeven is another person who has been cyber bullying sdfg and posting obscene comments for the past year. 

He has been creating multiple fake accounts of himself.

He first used to create gmail accounts like bibismuth and aww_yeah which were banned. Later he started creating Yahoo accounts which you have all seen-vortex,vxtro,1478 and this very "whoeven". So beware of all Yahoo accounts except a few such as eeshaan, anuragmunshi, anmj, satwindersingh, anushuku.. (Pardon me if I forgot any other original ones).

Here is one such fake sdfg: http://www.respaper.com/1478/about

For proof, please see the comments below. After seeing them, you may judge by yourself whether 
"Madam Rumour (that sdfg is fake) is as great a liar as the woman who snapped ginger and cried for the death of her third husband".

Sdfg sent me an email with these screenshots. He had sent the same to Nishi Khandelwal (another user) and also informed @tanisha of this. Presently, he has decided to leave this page as he is already fed up with the abuses that have been hurled on him.

By the way, Ted Green's screenshot shows that whoeven's english was good. But how can it be Sdfg? Why, is he the only user on Res whose English is excellent? Why, can't whoeven who kept troubling us on this page have a good english though he is void of a dram of human values? How can it prove that Sdfg who is inclined to study and help, and whoeven who is the "terrorist" on ResPaper, are same? So please do not judge another person and jump to conclusions before knowing the matter completely.

I am reminded of a quote of Swami Chinmayananda: "To misunderstand a man is easy, to understand him is difficult."

I am disclosing another fact: Sdfg is reserved and introvert and does not like to expose himself. So let him live with his privacy. Are we going to gain half a paisa by knowing sdfg's name? Let's be tolerant and respectful. We are proud to be Indians and that India is tolerant but the pride is true only if we are ready to accept others' privacy and uphold peace on this forum which is the best blessing of internet to students. I make an earnest request to accept sdfg as your friend again and not make this boon a bane.