True or false? Free bicarbonate is readily soluble in water. in the lower right-hand corner of the periodic table. Which of the following compounds has the highest boiling point? 16. Which of the following statement is true? Non polar molecules are unable to form water-solute interaction, (6). 1.2 Å 1. This set of practice questions will help to build your confidence in Biochemistry to face the real examination. d.      The hydrogen atom and the two atoms that share it are in a straight line. (Hydrogen bond is represented as ‘…’). c.       NH2 and H2S are polar but NO is non-polar a. 10-13 M d.      Same in ice, liquid water and water vapour, (7). Use the periodic table as your guide. 2. Which one of the following elements is least likely to participate in a hydrogen bond? STRUCTURE & BONDING. 9-13 M Cl … a. (1). is/are true? (c). (b) London dispersion. Which of the molecules below would not form hydrogen bonds? b.      CO2 hemoglobin complex Higher values of Ka means, the acids of bases are readily dissociated to release corresponding H+ or OH- ions. c.       0.965 nm a. Hydrogen’s nucleus is electron deficient when it bonds with an electronegative atom. Carbon dioxide forms carbonic acid (H2CO3) in aqueous solution and is transported as the HCO3- (bicarbonate) ions. Ans. a hydrogen atoms form an ionic bond with one other atom. a. All are polar and completely soluble in water, c.       NH2 and H2S are polar but NO is non-polar, d.      NH3 and H2S are non-polar but NO is polar, a. (d) ionic bond. It can readily dissolve in water The hydrogen atom and the two atoms that share it are in a straight line, (11). (A) A network solid with covalent bonding (B) A molecular solid with zero dipole moment (C) A molecular solid with hydrogen bonding (D) An ionic solid (E) A metallic solid 8. c.       2.4 Non polar molecules are uncharged, b. The answer key is prepared with best of our knowledge. Which of the following molecule do not form hydrogen bond with water? The van der Waals radius of Oxygen atom in water molecule is. Water molecules ionize into H+ and OH- ions. Non polar molecules are insoluble in water. c.       Non polar molecules are unable to form water-solute interaction All are completely non polar and insoluble in water, b. covalent bonding hydrogen bonding ionic bonding metallic bonding . What type of intermolecular forces are due to the attraction between temporary dipoles and their induced temporary dipoles? You can download all these questions papers and study materials as PDF from our Slideshare account absolutely free, (adsbygoogle=window.adsbygoogle||[]).push({}), (4). Please Share with Your Friends... MCQ on Water, Hydrogen Bonds, pH and Buffers – Part 2. MULTIPLE CHOICE QUESTIONS. Which one of the following is not a form of chemical bonding? d.      It can increase the solubility of water. Reference: (1). CO2, O2 and N2 are non-polar and completely insoluble in water. Multiple Choice Questions. b. b.      H+ ions are more positive than Na+ or K+ ions Condensation, the transition from gas to liquid, is associated with an increase in intermolecular forces. Fundamentals of Biochemistry by Voet and Voet: Chapter: Water. b. (13). a hydrogen atom forms covalent bonds with more than one atom. d.      – O – H … C – O – X, (6). ... hydrogen bonding, van der Waals forces, dipole-dipole interaction . More stronger a) O. b) F. c) S. … Ans. The hydrogen atom and the two atoms that share it are in separate molecule, c.       The hydrogen atom and the two atoms that share it are in very close contact, d.      The hydrogen atom and the two atoms that share it are in a straight line, a.       CO2, O2 and N2 are non-polar and completely insoluble in water, b.      CO2, O2 and N2 are polar and soluble in water, c.       CO2 and O2 and N2 are partially soluble in water, d.      CO2 and O2 are polar and soluble in water, but N2 is non-polar and insoluble in water, a. d.      – S – H, (10). b. Order the following bonds from least to most polar. Copyright © Oxford University Press, 2016. The H+ ions formed can immediately combine to intact H, MCQ on Environmental Science with Answer Key, Model Question Paper for ICMR JRF Life Science Examination July 2015 with Answer Key and Explanations Part 3 (MCQ 15), Ecology Multiple Choice Questions Part 2 with Answer Key, Microbiology MCQ 02 Practice Questions Part 2 with Answer Key and Explanations, Microbiology MCQ 01 Practice Questions Part 1 with Answer Key and Explanations. H - Cl < Cl - Cl < Br - Cl. d.      Hydrogen bond formation is not possible with non-polar molecules, (5). Which one of the following statements about positive ions is incorrect? Try to answer these questions without refering to page 405, table 14.2 in your c.       H+ ions can move in water very fast by proton hopping Ans. Nitrogen would have a partial positive charge and fluorine would have a d.      NH3 and H2S are non-polar but NO is polar. (b) … c.       Minimum in liquid water and maximum in water vapour c.       It can form micelles in water Non-polar molecules can contain polar bonds. Enter your e-mail address. a. (14). d.      Converted to basic solution, (9). Which of the following amino acid side chains cannot participate in a hydrogen bond? a. (15). As the Ka of an acid decreases, the acid will be All Rights Reserved. Ans. c.       The hydrogen atom and the two atoms that share it are in very close contact