Interactive Quiz 1

Interactive Quiz 1

Interactive Quiz 1
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1		The lone pair of electrons on sulfur in SO₂ is in
			A)	a p orbital.
			B)	an s orbital.
			C)	an sp² hybrid orbital.
			D)	an sp³ hybrid orbital.
			E)	none of the above orbital types.


2		Which of the following molecules has sp³ hybridization and a dipole moment?
			A)	SiH₄
			B)	BF₃
			C)	NH₃
			D)	BrF₃
			E)	PCl₅


3		Which of the following hybridization patterns is associated with trigonal bipyramidal geometry?
			A)	sp²
			B)	sp³
			C)	sp³d²
			D)	sp³d
			E)	sp


4		Which of the following hybridization patterns best describes the central atom in H₂CF₂?
			A)	sp²
			B)	sp³d
			C)	sp³
			D)	sp
			E)	sp³d²


5		How many bonds are present in a molecule of ethyne (acetylene), C₂H₂?
			A)	3
			B)	2
			C)	1
			D)	0
			E)	none of the above


6		Which of the following hybridization patterns best describes the carbon atom in NCO^-?
			A)	sp²
			B)	sp³d
			C)	sp³
			D)	sp
			E)	sp³d²


7		A carbon-carbon double bond consists of
			A)	a bond and two bonds.
			B)	a bond and two bonds.
			C)	two bonds.
			D)	two bonds.
			E)	a bond and a bond.


8		What type orbital holds the lone pair of electrons on nitrogen in H₂CNH?
			A)	2s
			B)	2p_x
			C)	sp
			D)	sp²
			E)	sp³


9		In a carbon-carbon triple bond, what is the nature of the bonding between the carbons?
			A)	two 2s orbitals overlapping
			B)	two 2p orbitals overlapping
			C)	two sp orbitals overlapping, two 2p_y overlapping and two 2p_z overlapping
			D)	an sp and sp² overlapping and 2p orbitals overlapping
			E)	an sp² and sp² overlapping and 2p orbitals overlapping


10		Which type of hybrid orbital on carbon is associated with bonds having restricted rotation?
			A)	sp
			B)	sp²
			C)	sp³
			D)	sp³d
			E)	sp³d²


11		When the nitrogen molecule, N₂, loses an electron,
			A)	the ion formed will be less stable than N₂.
			B)	the ion formed will be more stable than N₂.
			C)	the stability of the ion formed will be the same as that of N₂.
			D)	the bond length of ion will be shorter than the bond length of N₂.
			E)	none of the above statements is correct.


12		According to the molecular orbital model, which is the least stable?
			A)	He₂
			B)	Li₂
			C)	B₂
			D)	C₂
			E)	NO


13		According to molecular orbital theory, what is the bond order in F₂⁺?
			A)	1
			B)	1.5
			C)	2
			D)	2.5
			E)	3.0


14		According to the molecular orbital model, the highest occupied molecular orbital of O₂ is
			A)	_2s
			B)	_2p
			C)	*_2s
			D)	*_2p
			E)	*_2p


15		Consider benzene (C₆H₆), carbonate ion (CO₃^2-) and water (H₂O). Of these three species, which one(s) has/have delocalized molecular orbitals?
			A)	only benzene
			B)	only carbonate
			C)	only water
			D)	benzene and water
			E)	benzene and carbonate

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