Before categorizing each of the properties into physical or chemical, intensive or extensive, we need to understand the terms:
Physical property: This is any characteristic that can be determined without changing the substance’s chemical identity.
Chemical property: This is any characteristic that can be determined by simply changing the molecular structure of a substance
1) For the property: Its melting point is 112 degrees Celcius is a Physical property and intensive since extensive property depends on the amount of matter being measured.
2) If a substance burns in a presence of oxygen, it is a chemical property since the molecular structure of the resulting compound will be changed. This is also an intensive property.
3) If a substance is yellow solid is a physical property since the first is the color yellow and solid shows the state of the element. Neither property implies that the substance is changing its composition. Therefore, both properties are physical properties. This physical property is Intensive properties since it does not depend on the amount of the substance present.
4) If the substance is combustible, it is a chemical property and intensive property
5) For the sample of a substance that measures 75cm^3, this is a Physical property since the volume of a substance can be determined without changing its identity. This is also an extensive property since examples of these properties include mass, weight, and volume.