Question

A convex meniscus is observed when mercury is taken in a capillary tube. Choose the correct option.

• A. Mercury molecules shows higher cohesive force than adhesive force with glass.
• B. Mercury molecules shows less cohesive force than adhesive force with glass.
• C. Both (a) and (b)
• D. None of these

Answer 1

The correct option is A Mercury molecules shows higher cohesive force than adhesive force with glass.

We know,
Convex meniscus is observed when cohesive force is higher than the adhesive force between mecury and glass.
$\therefore$ option (A) is correct.