(A) NF3 (B) NCl3 (C) PH3 (D) BF3. a month ago. Furthermore, what makes a molecule trigonal planar? The hydrogen atoms are as far apart as possible at 120o. d) tetrahedral. Planar molecule = all atoms lie on same plane ( aka surface) Imagine this webpage it is one surface and dichloroacetylene would be flat against the page when viewed from above. This is especially important when dealing with stereochemistry (the spatial arrangement of atoms and groups in a compound and its relation to the properties of the compound). A planar molecule is one in which the atoms are all on the same plane. This distribution of atoms in the central atom’s square plane is where it gets the name “square planar.” The bonds between the atoms in this geometry are 90 degrees. Which molecule is planar? Close. b) trigonal planar. Assertion : Formaldehyde is a planar molecule. Which of the following has square-planar molecular geometry? a. PBr3 . Favorite Answer. d) 120°. Correct option (a) XeF 4. 1. Boron trifluoride B F 3 molecule has trigonal planar geometry. (Example 10.1) bonding | molecular geometry the valence-shell electron-pair repulsion model MSC: general chemistry 36. Chemistry - Combustion. Learn with Videos. View Answer. The approximate H—C—C bond angle in ethane, C2H6, is a) 60°. Pigster Badges: 19. Planar's commitment to high quality, leading-edge display technology is unparalleled. Diatomic molecules are the same; they are not planar -- an INFINITE number of planes pass through a line. A compound with trigonal planar molecular geometry has a central atom bonded to three other atoms or groups. The atoms are in the same plane, and bond angles are 120 degrees. Planar: Said of a molecule when all of its atoms lie in the same plane. A compound with trigonal planar molecular geometry has a central atom bonded to three other atoms or groups. 1. Why is aldehyde planar and ketone isn't? Some ions with trigonal planar geometry include nitrate (NO−3), carbonate (CO2−3), and guanidinium (C(NH2)+3). Comment déterminer si une molécule est planaire. 1 decade ago. Watch Queue Queue. As it has no lone pairs of electron … Answer with step by step detailed solutions to question from MTG's BITSAT Power Guide, Chemical Bonding and Molecular Structure- "BCl3 molecule is planar while NCl3 is pyramidal because" plus 6299 more questions from Chemistry. The shape of a molecule is trigonal planar. Molecules where the three ligands are not identical, such as H2CO, deviate from this idealized geometry. Rosco. which molecule is planar? Is that confusing? 0 0. See Answer. Molecules with an tetrahedral electron pair geometries have sp 3 hybridization at the central atom. Comment déterminer si une molécule est plane. I was looking at the mechanism of carbonyl with HCN and these questions popped into my mind. The angle between two sp hybrid orbitals is: 109° 120° 180° 60° 90° 5. When you look at the structure of a six-membered ring, if all the molecular geometries around each atom in the ring are \mathbf(sp^2)-hybridized, then the whole molecule is planar. See the wikipedia page and Sailor Astra's explanation below. I made a couple of videos that should open in Windows Media Player. Why is ethene a planar molecule while ethyne is a linear molucle? Loading... Close. Example CH = CH. I F 3 has 'T' shaped geometry. - Allene is not planar. View Answer. Check out a sample Q&A here. The Trigonal Planar shape is a type of shape which a molecule takes form of when three bonds point to corners of an equilateral triangle. when there are 3 things attached to C then the molecule is trigonal planar which is flat. d. PCl5. 3 Answers. La forme d'une molécule dépend des atomes qui la composent et des électrons qui appartiennent à l'atome central. Maths. Can also be said for a portion of a molecule, such as a ring. 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