Table of Contents [hide]
- 1 Why are the molecular geometries for CH4 and NH3 different?
- 2 Why are the shape of NH3 and H2O different from CH4 through the hybridization is same?
- 3 Why do bond angles in CH4 NH3 and h20 differ?
- 4 Why NH3 is having different bond angle as compared to H2O but both are having same hybridization?
- 5 Why do the deviations occur from idealized shape of H2O and NH3 molecules same hybridization different hybridization repulsive effect none of the above?
- 6 Does H2O and NH3 have same structure?
- 7 What is the shape of NH3 and H2O?
- 8 Why are the bond angles of CH4 H2O and NH3 different?
- 9 What is the hybridization of CH4 NH3 H2O and CH4?
Why are the molecular geometries for CH4 and NH3 different?
If these are all bond pairs the molecular geometry is tetrahedral (e.g. CH4). If there is one lone pair of electrons and three bond pairs the resulting molecular geometry is trigonal pyramidal (e.g. NH3). When there are lone pairs of electrons present they may be positioned in axial or equatorial positions.
Why are the shape of NH3 and H2O different from CH4 through the hybridization is same?
Bond angle differs in H2O, NH3, CH4 even though all are sp3 hybridized due to the presence of lone pairs of electrons. The shapes of the molecules are distorted in the presence of lone pairs. There are no lone pairs o the central carbon atom present in this molecule.
Why do bond angles in CH4 NH3 and h20 differ?
The four H-atoms are situated at the four corners of the tetrahedron. The bond angle between H—C—H is 109.5° which is called the tetrahedral angle. This lone pair causes repulsion of electrons and hence causes the decrease in the normal tetrahedral angle which gets reduced to 107° in NH3 and 104.5° in H2O.
What is the shape of H2O NH3 draw the geometry?
Answer: H2O has v shaped or bent structure. ..it is doue to presence of 2 lone pairs on it that it do not have a straight structure with 180 degree angle. NH3 has pyramidal structure . it’s 3 hydrogen atoms are at 3 base vertices of pyramid while a lone pair forms the apex of it.
Why do H2O and H2S have dissimilar geometries?
H20 have greater bond angle than H2S because in H20 ; the electronegativity of sulfer is less than oxygen; bond pair of electron drawn more toward ‘o’then’s’. The central atom has little tendency to open up the angle IN H2S then H2O..
Why NH3 is having different bond angle as compared to H2O but both are having same hybridization?
H2o contains two lone pairs where as NH3 contains only one lone pair. As we all know that lone pairs are responsible for the repulsions with in the molecule that causes to reduce the bond angle. Due to one lone pair bond angle decreases to 107.8). So, the bond angle of NH3 is greater than the bond angle of H2o.
Why do the deviations occur from idealized shape of H2O and NH3 molecules same hybridization different hybridization repulsive effect none of the above?
Answer: Since the repulsions on the bond pairs in H2O molecule are greater than that in NH3, the bond angle in water is less than that of ammonia. Although geometry of NH3 and H2O molecules are distorted tetrahedral, bond angle in water is less than that of ammonia. I HOPE THIS ANSWER IS HELPFUL FOR YOU.
Does H2O and NH3 have same structure?
Why is CH4 not square planar?
In CH4 molecule , carbon is sp³ Hybridized , so it is tetrahedral in shape . for square planar , dsp² Hybridisation is required which is not possible in Carbon due to absence of d – orbitals. therefore CH4 can’t be square planar .
Why are the structures of CH4 and SiH4 so similar?
Methane (CH4) and silane (SiH4) have same molecular shape. This is because atoms of carbon and silicon.
What is the shape of NH3 and H2O?
In case of NH3 that are 3 bond pairs and single lone pair. Since, repulsion between bond pair and lone pair is more than that of 2 bond pairs so, bonds are slifhtly constricted and form pyramidal shape with bond angle 107° . Similarly, H2O has 2 bond pairs and 2 lone pairs.
Why are the bond angles of CH4 H2O and NH3 different?
So, due to varying repulsive force the bond pairs and lone pairs distorted from regular geometry and organize themselves in such a way that repulsion will be minimum and stability will be maximum. The difference in the bond angles of CH4, H2O and NH3 can be explained using VSEPR Theory ( Valence Shell Electron Pair Repulsion theory ).
What is the hybridization of CH4 NH3 H2O and CH4?
CH4 has 4 C-H bonds, NH3 has 3 N-H bonds and 1 lone pair for a total of 4 domains. H2O has two bonds and two lone pairs again for a total of 4 domains. So all are sp3 hybridized. All are tetrahedral electronic geometry.
What is the difference between CH4 and NH3?
The difference is that only the CH4 has no lone pairs so the molecular shape (atomic geometric arrangement) is also tetrahedral. NH3 has only three bonds so it cannot fill out the full tetrahedral shape. It becomes trigonal pyramidal shaped with the lone pair on the top.