Water has a higher boiling point than the corresponding hydrides H,S, H,Se and H,le. This i hecause water has d)Vander Waals' forces #) lonic bonds ) Hydrogen bonds c) Covalent bonds Which one smong the following does not have the hydrogen bond ? b) liquid NH, d) Phenol c) Water #) iquid HC 14. Among the following which has the highest boiling point b) PH, d) CH4 c) AsH, 15 Iniramolecular hydrogen bonding is present in #) meta nitrophenol 16 Which of the following has the lowest boiling point ? ) CH, b) Salicylic acid c) hydrogen chloride d) benzophenone d) C,H,OH b) H,0 c) HF 17. (A) Parahydroxy benzaldehyde is more soluble in water than orthohydroxy benzaldehyde. (8) Parabydroxy benzaldehyde and orthohydroxy benzaldehyde are position isomers. #) (A) is True, (R) is True, (R) is a correct explanation for (A). ) (A) is True, (R) is True; (R) is NOT a correct explanation for (A). (A) is True, (8) is False, 18. (A) Water has more boiling point than that of hydrgen fluoride. (8) The molecular weight of H,O is more than HF. #) (A) is True, (R) is True; (R) is a correct explanation for (A). b) (A) is True, (R) is True, (R) is NOT a correct explanation for (A). (A) is True, (R) is False, 19 CCL, is insoluble in water because #) 11,0 is non-polar O They do not form inter molecular H-bonding d) They do not form intra molecular H-bonding d) (A) is False, (R) is True. d) (A) is False, (R) is True. b) CCI, is non-polar 29. Which of the following is most volatile?- A) Diamond 21, The bond order of individual carbon bonds in benzene is #) one ) Between one and two 22. Acetic acid exists as a dimer in benzene due to #) Condensation reaction b) Sodium chlorde c) Calcium d) Dry ice b) two d) One and two alternately b) Hydrogen bonding ) presence of phenyl group 23. The intermolecular attractive forces vary in the order #) Water