question
The basis of the VSEPR model of molecular bonding is ________.
answer
electron domains in the valence shell of an atom will arrange themselves so as to minimize repulsions
question
In counting the electron domains around the central atom in VSEPR theory, a ________ is not included.
answer
core level electron pair
question
The electron-domain geometry of ________ is tetrahedral.A) CBr4 B) PH3 C) CCl2Br2 D) XeF4 E) all of the above except XeF4
answer
E) all of the above except XeF4
question
Of the following species, ________ will have bond angles of 120°. A) PH3 B) ClF3 C) NCl3 D) BCl3 E) All of these will have bond angles of 120°.
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question
A molecule has the formula AB3 and the central atom is in a different plane from the surrounding three atoms. Its molecular shape is ________
question
Of the molecules below, only ________ is polar. A) CCl4 B) CH4 C) SeF4 D) SiCl4
question
Of the molecules below, only ________ is nonpolar.A) BF3 B) NF3 C) IF3 D) PBr3 E) BrCl3
question
Which of the molecules has a see-saw shape? (i) PCl3 (ii) CCl4 (iii) TeCl4 (iv) XeF4 (v) SF6
question
The combination of two atomic orbitals results in the formation of ________ molecular orbitals
question
Of the following, the central atom is sp3d2 hybridized only in ________. A) PCl5 B) XeF4 C) PH3 D) Br3- E) BeF2
question
A typical triple bond ________.
answer
A) consists of one ? bond and two ? bonds
question
In a typical multiple bond, the ? bond results from overlap of ________ orbitals and the ? bond(s) result from overlap of ________ orbitals.
