38.Which liquid have maximum surface tension? (1) H_2O (2) C_6H_6 (3) CH_3OH (4) C_2H_5OH

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Q. Which liquid has maximum surface tension?

Q. Which is the strongest hydrogen bond and the weakest hydrogen bond in the following. 1)H2S,H2O. 2) H2O,H2S. 3)NH3,C2H5OH. 4)C2H5OH,NH3

Q. The surface tension of which of the following liquid is maximum

Q. Match the following

Column - I	Column - II
a) A nearly ideal solution	p) $H_{2} O + C_{2} H_{5} O H$
b) A solution showing positive deviation	q) $C_{6} H_{6} + C_{6} H_{5} C H_{3}$
c) A solution showing negative deviation	r) $C_{6} H_{6} + C H C l_{3}$
d) An azeotropic mixture	s) $C H_{3} C O C H_{3}$ + $C_{2} H_{5} O H$
	t) $Δ H$ and $Δ V$ are positive
	u) $Δ H$ and $Δ V$ are negative

The magnitude of surface tension of liquid depends on the attractive forces between the molecules. Arrange the following in increasing order of surface tension:
Water, alcohol $(C_{2} H_{5} O H)$ and hexane $[C H_{3} (C H_{2})_{4} C H_{3})]$

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