General science: Elements and Metals
1.
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Water
is a good solvent of ionic salts because
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2.
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Which
of the following is not an isotope of hydrogen?
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3.
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The
main constituents of pearls are
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4.
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Amalgams
are
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5.
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Which
of the following is the lightest metal?
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1
Answers:
1)
c
2)
d
3)
b
4)
b
5)
b
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