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Q7 ans is C as Cl^2 is a molecule so charge is 0 ,Na has +1 charge as in group 1 so Cl will have -1 so that overall it should be neutral,O is -2 there are three oxygen so -6 , one Na is +1,overall compound should be neutral so Cl is +5
Q11 ans is A because I think the curve as the temp is higher there will be more effective collisions so activation energy for 500 K will be less so peak will be smaller than the 300 K dotted one the peak is only small in A . This is what I think the logic behind this question is
Q13 ans is A , let's do this question by eliminating all the options
Q15 it's a tough one but first of all we have to make an equation take any of the group 2 metal and form an equation of a metal nitrate being heated .equation is for eg I am taking magnesium
Why don't u post your doubts on this thread there will be many ppl over there to help here is the link
Hi guys
How are u all?
i need help in http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_w13_qp_12.pdf
Q8)
Q9)
Q13)
Q16)
Q17)
Q20)
THANK YOU GUYS
Even if u can help me only in few of them , I have NO PROBLEM
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