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# Noble Gas Species Which is Isostructural Ici−4 - CBSE (Science) Class 12 - Chemistry

ConceptP - Block Group 18 Elements Concept of Group 18 Elements

#### Question

Give the formula and describe the structure of a noble gas species which is isostructural with

ICI_4^(-)

#### Solution 1

ICI4: In ICI4, central atom I has seven valence electrons and one due to negative charge. Four out of these 8 electrons are utilized in forming four single bonds with four Cl atoms. Four remaining electrons constitutes the two lone pairs. It is arranged in square planar structure. ICI4 has 36 valence electrons. A noble gas species having 36 valence electrons is XeF4 (8 + 4 x 7 = 36). XeF4 is also square planar.

#### Solution 2

XeF4 is isoelectronic with ICI_4^(-) and has square planar geometry.

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#### APPEARS IN

NCERT Solution for Chemistry Textbook for Class 12 (2018 to Current)
Chapter 7: The p-block Elements
Q: 38.1 | Page no. 208

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Solution Noble Gas Species Which is Isostructural Ici−4 Concept: P - Block Group 18 Elements - Concept of Group 18 Elements.
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