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anyone of you could plz help me with MCQ q9 /p1/nov 08 of phys
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which format for electronic configuration should be followed ????????? in olevel examinations in chemistry???
EITHER 1s2,2p2.....................
or K2M8N2
Are you sure????22 and 12
exactly my case!!!Nopes it supposed to be concentrated if u still are confused check the answer for a CIE question on Electrolysis where they say the products on anode when aqueous NaCl is electrolysed,its bound to be Cl2 and not O2 !
anyone of you could plz help me with MCQ q9 /p1/nov 08 of phys
20) The oxide of an element X increases the rate of decomposition of hydrogen peroxide. At the end
of the reaction the oxide of X is unchanged.
Which details are those of X?
proton number---- mass number
A 18 -------------40
B 20------------- 40
C 25--------------- 55
D 82 --------------207
Understood. ThankxBasically it means that A,B,C or D one of them is a catalyst which actually increases the RATE of decomposition of H2O2 and is UNCHANGED at end ! these are all catalyst property so just get the periodic table and see which one is a transition metal !
Answer is C which is Manganese !
It's basically practice . Just solve the past papers , you don't need to study a book or anything the Physics ATP is general knowledge really. Look at the past papers to see what kind of questions are asked.help in Physicss ATP
Plzzzzzzzzzzzzzzzzzzzzzzzzzzzzz Tipssssssssssss
http://www.xtremepapers.com/community/threads/additional-maths-4037-specimen-paper-2013.23100/I need specimen paper 2013 fOr Physics and Add Maths... sOmeone can help??
One past paper a day , keeps the tension away.hey if i start doing them now will i able to finish them before may? and ya would it be better starting them from 2003-2012
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