To determine which of the following compounds has alinear molecular geometry, let's first understand what linear molecular geometry is. Linear molecular geometry occurs when a molecule'scentral atomis surrounded by two bonding pairs of electrons, creating a straight line with a bond angle of 180 degrees.Now, let's analyze each compound:i. GaI3:Galliumhas three valence electrons and is bonded to three iodine atoms, each providing one electron. This forms a trigonal planar geometry with bond angles of 120 degrees, so it is not linear.ii. SF4:Sulfurhas six valence electrons and is bonded to four fluorine atoms, with one lone pair on the sulfur. This forms a see-saw geometry with bond angles deviating from 120 and 90 degrees, so it is not linear.iii. NF3:Nitrogenhas five valence electrons and is bonded to three fluorine atoms, with one lone pair on the nitrogen. This forms a trigonal pyramidal geometry with bond angles of around 107 degrees, so it is not linear.iv. KrF2:Kryptonhas eight valence electrons and is bonded to two fluorine atoms, with three lone pairs on the krypton. This results in a linear molecular geometry with a bond angle of 180 degrees.So, among the given compounds, KrF2 has a linear molecular geometry.For more information oncentral atomsee:brainly.com/question/29422259#SPJ11...

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