chemistry 10th
TRANSCRIPT
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8/9/2019 Chemistry 10th
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Chemistry 10th
1. Write the type of reactions in the following:
i. Reaction between an acid and a base
ii. Rusting of iron
2. Give the names of the functional groups.
i. C!
ii. C " !
iii.
#. $raw the structure of %utanone molecule& C#C!C2'.
(. ow does the metallic character of elements change along a period of the
periodic table from the left to the right and why)
'. *n the modern periodic table& the element calcium +atomic number " 2,- is
surrounded by elements with atomic numbers 12& 1& 21 and #/. Which of
these elements has physical and chemical properties resembling those of
calcium and why)
0. Write chemical euations to show what happens when:
i. thanol is heated with concentrated sulphuric acid at ((# 3.
ii. thanol reacts with ethanoic acid in the presence of an acid acting as a
catalyst.
iii. 4n ester reacts with a base.
5. 6he atomic number of an element is 10. 7redict
i. the number of valence electrons in its atom
ii. its valency
iii. its group number
iv. whether it is a metal or a non8metal
v. the nature of o9ide formed by it
vi. the formula of its chloride
/. 9plain the mechanism of the cleaning action of soaps
9. 9plain isomerism. tate any four characteristics of isomers. $raw the
structures of possible isomers of butane& C(1,.