Hydrogen bonds are formed in many compounds e.g., H₂0, HF, NH₃. The boiling point of such compounds depends to a large extent on the strength of hydrogen bond and the number of hydrogen bonds: The correct decreasing order of the boiling points of above compounds is
(a) HF>H₂0>NH₃                        
(b) H₂0>HF>NH₃
(c) NH₃>HF>H₂0                       
(d) NH₃>H₂0>HF

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