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Question

An experiment is conducted where droplets of liquid are placed on the surface of a penny. Which of the following substances would you expect to the able to place the maximum number of drops of on the surface of the penny?

A
HF
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B
H2O
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C
CH3CH2CHO
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D
CCl4
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Solution

The correct option is B HF
Fluorine is most electronegative element so it forms stronger hydrogen bond which is the reason of stronger surface tension.So HF drops place maximum on the penny.

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