hahahahahahhahahahah yb2a inta akeed 3erefteny dlw2ty yaaaaaaaaaaaaaad ;p;p
A Hint: I'm An A2 Student, Suffering From Edexcel ;p
And regarding u're chem. q.:
just go through the test for cations/ anions and memorize each observation perfectly, and solve by viewing the mark scheme and try to get the idea..its simply and clear within those mark schemes