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JEE CHEMISTRY MCQ: 14 TH GROUP ELEMENTS (P-BLOCK)
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Medium
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Analyzing
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Identify the correct statements among the following
(i) standard enthalpies of formation of allotropes of carbon are in the order fullerene > Diamond graphite
(ii) Boric acid is a monoprotic acid
(iii) Hydrolysed product of on polymerization produce Silicones
(iv) First ionization enthalpies of group elements follow the order In
(i) standard enthalpies of formation of allotropes of carbon are in the order fullerene > Diamond graphite
(ii) Boric acid is a monoprotic acid
(iii) Hydrolysed product of on polymerization produce Silicones
(iv) First ionization enthalpies of group elements follow the order In
View answer and explanation
Correct option: A
Option A ((i), (iv)) is correct. Standard enthalpies of formation increase in the order graphite < diamond < fullerene, and the ionization enthalpies of group 13 elements follow the given order.
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