d) Explain the following periodic trends: (i) m.p. SnFa (705 °C) > m.p. SiFa (-90 °C); (ii) SnF2 exists stable compound but SIF2 does not. as a
d) Explain the following periodic trends: (i) m.p. SnFa (705 °C) > m.p. SiFa (-90 °C); (ii) SnF2 exists stable compound but SIF2 does not. as a
General Chemistry - Standalone book (MindTap Course List)
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Chapter21: Chemistry Of The Main-group Elements
Section: Chapter Questions
Problem 21.190QP
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Solve (d) part now in 30 min and take a thumb up plz and solve correctly plz according to question.
![Question 2
(a) Consider the following equation
NO:(g) + H:O(1) → HNO:(aq) + NO(g)
(1) Write two balanced half-equations and hence balance the above equation.
(ii) Describe the redox behaviour of NO2 in this reaction.
(iii) State why this reaction is important industrially.
(b) A closo borane anion has the following structure
(i) Write down the formula of this closo borane anion.
(ii) Write down the number of skeletal electron pairs (SEP) in the anion.
(iii) Determine the formula of the neutral boron hydride that can be formed by removing
two of the vertices of the above borane anion and state the styx code for this neutral
borane.
(c) Use Wade's rules to classify each of the following carboranes or metallacarborane and
state the formula of the parent closo cluster, where applicable.
[C:B.Hs). [C:B>H, [C.BaHsNi(CO)s]
d) Explain the following periodic trends:
(i) m.p. SnF4 (705 °C) > m.p. SiF4 (-90 °C);
(ii) SnF2 exists as a stable compound but SiF2 does not.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe522a9f4-abc6-4fa2-bbd6-740137fb9b1e%2F3a165032-691f-464a-acc3-3996bdcf18d1%2Fc4zd0tj_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Question 2
(a) Consider the following equation
NO:(g) + H:O(1) → HNO:(aq) + NO(g)
(1) Write two balanced half-equations and hence balance the above equation.
(ii) Describe the redox behaviour of NO2 in this reaction.
(iii) State why this reaction is important industrially.
(b) A closo borane anion has the following structure
(i) Write down the formula of this closo borane anion.
(ii) Write down the number of skeletal electron pairs (SEP) in the anion.
(iii) Determine the formula of the neutral boron hydride that can be formed by removing
two of the vertices of the above borane anion and state the styx code for this neutral
borane.
(c) Use Wade's rules to classify each of the following carboranes or metallacarborane and
state the formula of the parent closo cluster, where applicable.
[C:B.Hs). [C:B>H, [C.BaHsNi(CO)s]
d) Explain the following periodic trends:
(i) m.p. SnF4 (705 °C) > m.p. SiF4 (-90 °C);
(ii) SnF2 exists as a stable compound but SiF2 does not.
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