What is produced when 60 g of nitrogen monoxide reacts with an excess of carbon monoxide in a catalytic converter?
A.
12 g of carbon and 92 g of nitrogen dioxide
B.
24 g of carbon and 92 g of nitrogen dioxide
C.
88 g of carbon dioxide and 28 g of nitrogen
D.
88 g of carbon dioxide and 56 g of nitrogen
Exam No:9701_s24_qp_13 Year:2024 Question No:24
Answer:
C
Knowledge points:
3.1.1 define electronegativity as the power of an atom to attract electrons to itself
3.1.2 explain the factors influencing the electronegativities of the elements in terms of nuclear charge, atomic radius and shielding by inner shells and sub-shells
3.1.3 state and explain the trends in electronegativity across a period and down a group of the Periodic Table use the differences in Pauling electronegativity values to predict the formation of ionic and covalent bonds (the presence of covalent character in some ionic compounds will not be assessed) (Pauling electronegativity values will be given where necessary)
Solution:
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