We evaluate each statement one by one.

Statement A:

Surface tension arises due to extra energy of the molecules at the interior as compared to the molecules at the surface.

This is false.

• Molecules at the surface have higher potential energy than molecules in the interior because surface molecules experience unbalanced cohesive forces.
• Surface tension arises because the liquid tends to minimize its surface area due to this excess energy at the surface.

Hence, statement A is incorrect.

Statement B:

As the temperature of liquid rises, the coefficient of viscosity increases.

This is false.

• For liquids, viscosity decreases with increase in temperature.
• Reason: intermolecular cohesive forces become less effective as thermal motion increases.

Hence, statement B is incorrect.

Statement C:

As the temperature of gas increases, the coefficient of viscosity increases.

This is true.

• In gases, viscosity is due to momentum transfer between layers.
• As temperature increases, molecular speed increases, so viscosity increases.

Hence, statement C is correct.

Statement D:

The onset of turbulence is determined by Reynold's number.

This is true.

• Reynolds number is $Re = \frac{\rho v d}{\eta}$
• It decides whether flow is laminar or turbulent.
• Turbulence begins when Reynolds number exceeds a critical value.

Hence, statement D is correct.

Statement E:

In a steady flow two stream lines never intersect.

This is true.

• A streamline gives the direction of velocity at each point.
• If two streamlines intersected, the fluid particle at the intersection would have two velocity directions simultaneously, which is impossible.

Hence, statement E is correct.

Therefore, the correct statements are: $C, D, E$

Matching with the options:

• Option B: C, D, E Only

So the correct answer is B.