Soil Pollution Jamb Chemistry Past Questions
Question 1
Which of the following statements is true about 2-methylpropane and butane
- A. They have different number of carbon atoms
- B. They are members of same homologous series
- C. They have the same boiling points
- D. They have different chemical properties
Question 2
A sample of any of the following substances disappears after some time when exposed to air like camphor, naphthalene, or dry ice. This phenomenon is called?
- A. Sublimation
- B. Evaporation
- C. Diffusion
- D. Radiation
Question 5
The only metal that is anti-bacterial is?
- A. Iron
- B. Sodium
- C. Alluminium
- D. Copper
