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can any 1 give explanations for the following mcqs:
o/n 2010 mcq 7 , 12, 13 ,18, 40 :
http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_w10_qp_12.pdf
Thanks in advance.
q 18:
is B the answer??
well u see it does vaporise because it it is a gas but when kept in a gas jar it does not stay above air.
atleast that's what i think...