what is the geometry of the molecular compound formed by the reaction of sulfur with hydrogen?
linear
angular
trigonal planar
tetrahedral
please explain the correct answer
First we need to know the reaction between H and S, H has +1 and S has -2 charge ,molecular formula will be H2S.When we draw lewis structure ,there are 3 lone pair around S.So molecular geometry will be AX2E3 which means Linear.
The correct answer for the geometry of the molecular compound formed by the reaction of sulfur with hydrogen is linear.
When sulfur reacts with hydrogen, they form a molecule called hydrogen sulfide (H2S). In hydrogen sulfide, the central sulfur atom is bonded to two hydrogen atoms. The electron pair arrangement around the central sulfur atom is determined by its electron and molecular geometry.
In this case, the sulfur atom has two bonding electron pairs and two lone pairs of electrons. This gives us a total of four electron pairs around the central sulfur atom. The electron pair repulsion theory (VSEPR theory) states that electron pairs repel each other and try to maximize their distance from each other to minimize repulsion.
With four electron pairs, the molecular geometry of hydrogen sulfide is linear. The two bonding pairs and two lone pairs arrange themselves in a way that they are as far apart from each other as possible, resulting in a linear shape.
Therefore, the correct answer is linear.
To determine the geometry of a molecular compound, we need to consider the electron arrangement around the central atom. In this case, we need to look at the Lewis structure of sulfur (S) and hydrogen (H) and their bond formation.
Sulfur has 6 valence electrons, and hydrogen has 1. Since sulfur forms compounds by gaining two more electrons, we need two hydrogen atoms to form a compound (H2S).
To draw the Lewis structure for H2S:
1. Write the atomic symbol for sulfur (S) in the center and place the two hydrogen (H) atoms around it.
2. Connect each hydrogen atom to the sulfur atom using a single bond.
3. Distribute the remaining electrons around the atoms to fulfill the octet rule (except for hydrogen, which only requires 2 electrons).
The Lewis structure for H2S looks like this:
H H
\ /
S
Now, to determine the geometry around the central sulfur atom, we look at the electron pairs. In H2S, there are two bonding pairs (one from each hydrogen) and two non-bonding pairs on sulfur.
Using the VSEPR (Valence Shell Electron Pair Repulsion) theory, the bonding and non-bonding electron pairs repel each other, leading to a specific molecular geometry.
In this case, with two bonding and two non-bonding pairs, the electron pair arrangement is a tetrahedral. However, since there are two bonding and two non-bonding pairs, the molecular geometry is not tetrahedral.
The correct answer is angular, or bent. The molecular geometry is influenced by the presence of the two non-bonding electron pairs, which exert a stronger repulsion, causing the bonds to bend away from each other.
Therefore, the geometry of the molecular compound formed by the reaction of sulfur with hydrogen (H2S) is angular.