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Questions and Answers
What is the primary consequence of intramolecular hydrogen bond formation in certain molecules?
What is the primary consequence of intramolecular hydrogen bond formation in certain molecules?
- Enhanced association of molecules
- Disproportionation of molecules
- Increased reactivity of molecules
- Negligible effect on physical properties (correct)
In which of the following compounds does hydrogen bonding affect dissociation in aqueous solution?
In which of the following compounds does hydrogen bonding affect dissociation in aqueous solution?
- Hydrochloric acid
- Sulfuric acid
- Hydrogen fluoride (correct)
- Acetic acid
What is the characteristic feature of the cage-like structure of water molecules in solid ice?
What is the characteristic feature of the cage-like structure of water molecules in solid ice?
- Tetrahedral linking of four water molecules (correct)
- Octahedral arrangement of water molecules
- Linear arrangement of water molecules
- Tetrahedral linking of two water molecules
What is the temperature at which water exhibits maximum density?
What is the temperature at which water exhibits maximum density?
What is the approximate length of the hydrogen bond formed in HF, compared to the covalent O-H bond?
What is the approximate length of the hydrogen bond formed in HF, compared to the covalent O-H bond?
What is the primary reason for the solubility of lower alcohols in water?
What is the primary reason for the solubility of lower alcohols in water?
Why do compounds with hydrogen bonding exhibit abnormally high melting and boiling points?
Why do compounds with hydrogen bonding exhibit abnormally high melting and boiling points?
What is the effect of intramolecular hydrogen bonding on the solubility of a compound in water?
What is the effect of intramolecular hydrogen bonding on the solubility of a compound in water?
Why is o-nitrophenol sparingly soluble in water, while p-nitrophenol is completely soluble?
Why is o-nitrophenol sparingly soluble in water, while p-nitrophenol is completely soluble?
What is the energy requirement for the formation of a chemical bond?
What is the energy requirement for the formation of a chemical bond?
What is the primary reason for the increase in density of water upon heating up to 277K?
What is the primary reason for the increase in density of water upon heating up to 277K?
What is the primary reason for the higher boiling points of compounds with intermolecular hydrogen bonding?
What is the primary reason for the higher boiling points of compounds with intermolecular hydrogen bonding?
What is the effect of hydrogen bonding on the solubility of compounds in covalent solvents?
What is the effect of hydrogen bonding on the solubility of compounds in covalent solvents?
What is the primary reason for the higher viscosity and surface tension of substances with hydrogen bonding?
What is the primary reason for the higher viscosity and surface tension of substances with hydrogen bonding?
What is the effect of temperature on the extent of hydrogen bonding?
What is the effect of temperature on the extent of hydrogen bonding?
What is the primary condition for the formation of a covalent bond?
What is the primary condition for the formation of a covalent bond?
Which of the following compounds violates the octet rule?
Which of the following compounds violates the octet rule?
What is the characteristic of a polar covalent bond?
What is the characteristic of a polar covalent bond?
What is the condition for the formation of a covalent bond, in terms of electronegativity?
What is the condition for the formation of a covalent bond, in terms of electronegativity?
Which of the following is a characteristic of covalent compounds?
Which of the following is a characteristic of covalent compounds?
What is the covalency of an element in a group?
What is the covalency of an element in a group?
Which covalent compounds can conduct electricity in a solid state?
Which covalent compounds can conduct electricity in a solid state?
Why do some covalent compounds show variable covalency?
Why do some covalent compounds show variable covalency?
What is the characteristic of covalent bonds?
What is the characteristic of covalent bonds?
Why are covalent substances generally insoluble in polar solvents like water?
Why are covalent substances generally insoluble in polar solvents like water?
What is the characteristic feature of the bond in coordinate covalent compounds?
What is the characteristic feature of the bond in coordinate covalent compounds?
Why are coordinate covalent compounds sparingly soluble in polar solvents like water?
Why are coordinate covalent compounds sparingly soluble in polar solvents like water?
What is the unit of measurement for dipole moment?
What is the unit of measurement for dipole moment?
What is the Lewis octet rule?
What is the Lewis octet rule?
What is the condition for the formation of a covalent bond?
What is the condition for the formation of a covalent bond?
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