Pure lead has a melting point of 327°C. Which of the following ranges is most likely to be the melting point temperature range for an alloy of lead containing 5% tin and 95% lead?
Explain why.
Sample A melting range: 347 – 372 °C
Sample B melting range: 301 - 314 °C
Sample C melting range: 327 °C

The answer is 4 i don't know if its right let me see.

Do you have any options?

Vander waals forces are inter molecular bonds that exist within molecules of the same substance. a water molecule is made up of oxygen and hydrogen atoms which share electrons between each other. the vander waals forces are forces that exist between multitude of different  molecules of water. dipole dipole forces is the type of vander waals force that exist in water. the oxygen atom which is more electronegative pulls the shared electron closer to itself thus generating a partial negative charge while the hydrogen acquire a partial positive charge. these two different charges causes attraction to occur in water molecules.