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Standard XII
Chemistry
Reactivity Towards Water
Identify the ...
Question
Identify the wrong example from the following for the group 14 elements.
A
Element which forms most acidic dioxide - Carbon
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B
Element which is affected by water - Lead
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C
Commonly found in +2 oxidation state - Lead
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D
Element used as semiconductor - Silicon
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Solution
The correct option is
C
Element which is affected by water - Lead
The surface of metallic lead is protected by a thin layer of lead oxide,
P
b
O
. It does not react with water under normal conditions.
Hence, the correct answer is option
B
.
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Q.
Identify the group
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A
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(d)forms the most acidic oxide.
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