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Question
For which of the two pairs, the angle of contact is same
 
Options:
A .  Water and glass; glass and mercury
B .  Pure water and glass; glass and alcohol
C .  Silver and water; mercury and glass
D .  Silver and chromium; water and chromium
Answer: Option B
:
B
Both liquids water and alcohol have same nature (i.e. wet the solid). Hence angle of contact for both is acute.

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