Chlorine atom donates a lone pair of electron and acquire positive charge. The negative charge is delocalised on ortho and para position by resonance. C-Cl bond acquires partial double bond character and is 169 pm as compared to 17.0 pm in chloromethane where C atom is sp3 hybridised. So larger amount of energy is required to break C-Cl bond in chlorobenzene and therefore is less reactive than haloalkane towards nucleophilic substitution reaction. 2. Haloalkanes react with KCN to form alkyl cyanide
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dispersion‚ ionic‚ and hydrogen-bonding) from weakest to strongest . a) dipole-dipole‚ London dispersion‚ ionic‚ and hydrogen-bonding b) London dispersion‚ dipole-dipole‚ hydrogen-bonding‚ and ionic c) hydrogen-bonding‚ dipole-dipole‚ London dispersion‚ and ionic d) dipole-dipole‚ ionic‚ London dispersion‚ and hydrogen-bonding e) London dispersion‚ ionic‚ dipole-dipole‚ and hydrogen-bonding Ans: b 2. Hydrogen bonds account for which of the following observation? a) Hydrogen naturally exists as a
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How do ionic bonds form? Transferring the electron forms an ionic bond. After transferring the electron‚ the two atoms become ion n will attract together because they have the opposite charges. Then an ionic bond is formed. How do covalent bonds form? A covalent bond is for sharing of electrons. I remember it like co-existing electrons to share (Eg H20). It is usually between two non-metals. Which compound‚ sugar or salt‚ is a better conductor of electricity? Explain your answer. Salt
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a pencil. 1 1. Which of the following weak interactions is NOT due to differences in electrical charge distribution? a) b) c) d) e) hydrophobic interactions. hydrogen bonds. dipole-diople interactions. ionic interactions. London dispersion forces. 2. Which of the following amino acids could form a hydrogen-bonding interaction between their R groups? a) Glutamine and Alanine b) Glutamine and Valine c) Glutamine and Phenylalanine d) Glutamine and Isoleucine e) Glutamine and
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molecular oxides on the right. Sodium peroxide‚ magnesium oxide and aluminum oxide are metallic oxide which have high melting and boiling point compared to other period 3 oxide. This is due to their giant ionic structure and the strong ionic bond. Strong ionic bond in the molecule need more energy to overcome it. Therefore‚ the more energy required‚ the higher the melting and boiling point. Aluminum oxide will have higher melting and boiling point than magnesium oxide because Al3+ ions having
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New thinking on corporate bond market in India Sanjay Banerji Krishna Gangopadhyay Ila Patnaik Ajay Shah New thinking on corporate bond market in India Foreword In the rush to produce urgent policy documents and briefing notes that any government has to do‚ it is easy to let matters that may not be quite as urgent to go unattended. However‚ the not-so-urgent often includes matters of great importance for the long-run well-being of the nation and its citizenry. Research papers on topics
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The Importance of Bond Market Development Since the Asian crisis‚ considerable attention has been paid to the role of corporate bond markets in overall. Crises like the Asian one gave following lessons: Foreign exchange exposures can be devastating Foreign capital flows can be volatile The risk of liquidity and maturity mismatches can be very acute and is a source of systemic risk These risks can be mitigated through the development of financial sector and this goes hand in hand with
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Chapter 14 Bond Prices and Yields Multiple Choice Questions 1. The current yield on a bond is equal to ________. A. annual interest divided by the current market price B. the yield to maturity C. annual interest divided by the par value D. the internal rate of return E. none of the above A is current yield and is quoted as such in the financial press. Difficulty: Easy 2. If a 7% coupon bond is trading for $975.00‚ it has a current yield of ____________ percent. A. 7.00 B. 6.53 C. 7.24
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interactions and hydrogen bonding. Dispersion forces‚ the weakest among the three‚ are brought about by an instantaneous or induced polarization of molecules. They are also known as van der Waals forces or London forces of attraction. Dipole-dipole interactions exist among polar molecules and are stronger than dispersion forces. A special kind of dipole-dipole force is hydrogen bonding which is the strongest intermolecular force of attraction. This is present among molecules with hydrogen bonded to an
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my household: Barry Bonds. To use those to words was worse than any other expletive in the English language. As I grew older‚ I was astonished to learn that other people did not treat that name with the same infamy that I was taught to use. Some people‚ I learned‚ even considered Bonds to be the greatest player of all time. I was astounded. How could this man‚ whom I had been conditioned to avoid even saying the name of‚ be treated with so much reverence? Barry Bonds‚ for the non-sports
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