The bond angles about the carbon atom in the formaldehyde molecule, H_2C = 0, ar

Question

The bond angles about the carbon atom in the formaldehyde molecule, H_2C = 0, are about 120 degree 60 degree 109 degree 180 degree 90 degree Which of the following types of molecules always has a dipole moment? Linear molecules with two identical bonds. Tetrahedral molecules (four identical bonds equally spaced). pyramid molecules (three identical bonds). planar molecules (three identical bonds equally spaced). None has a dipole moment. Which of the following molecules has a dipole moment? CH_4 CCI_4 CO_2 SO_2 none of these The hybridization of the central atom in I_3^- is: sp sp^2 sp^3 dsp^3 d^2sp^3 The carbon-carbon single bond in the following is formed by the overlap of which two hybrid sp-sp sp^2-sp sp^2-sp^2 sp^2-sp^3 sp^3-sp^3

Explanation / Answer

(14) CH2O is trigonal planar. So, its bond angle will be 120o

(15) Trigonal planar molecules will always have dipole moment since they are non symmetric .

(16) SO2 is not linear molecule and non symmteric. so it has dipole moment

(17) dsp3 is the hybridization of the central atom.

(18) It is trigonal planar .so, sp2 hybridization

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