Question 51 : which one among the following does not have the hydrogen bond?
1. water
2. liquid NH₃
3. phenol
4. liquid HCl
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Question 52 : How are bond length and bond energies related?
1. they are not related
2. the lower the bond energy, the shorter the bond length
3. the higher the bond energy, the shorter the bond length
4. the higher the bond energy, the longer the bond length
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Question 53 : Which of the following contains a covalent bond?
1. NO₃
2. Mg₃N₂
3. Li2O
4. NaCl
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Question 54 : Which type of bonding would be expected between S and Cl?
1. polar covalent
2. ionic
3. non-polar covalent
4. polyionic
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Question 55 : On hybridization of one s and one p orbitals we get:
1. three orbital in a plane
2. two orbital at 180°
3. two mutually perpendicular orbitals
4. four orbitals directed tetrahedrally
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Question 56 : Atoms bond primarily to _____.
1. increase thier potential energy and lose stability
2. make more atoms
3. increase their potential energy and gain stability
4. reduce their potential energy and gain stability
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Question 57 : Polar refers to _____.
1. the formation of uneven size ions
2. bonds that have an uneven distribution of charge
3. bonds that have an even distribution of charge
4. even-sized electronegativities in a bond
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Question 58 : What type of bonding does NaCl have?
1. polar covalent
2. metallic
3. nonpolar covalent
4. ionic
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Question 59 : The model for metallic bonding is known as _____.
1. the Rutherford model
2. the electron cloud model
3. the quantum model
4. the electron sea model
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Question 60 : Which type of bonding would be expected between I and Br?
1. hydraulic
2. non-polar covalent
3. ionic
4. polar covalent
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