Consider the following properties:
I) Objects made of silver become tar-
nished.
II) The boiling point of ethanol is 78◦C.
III) The red color of rubies is due to the
presence of chromium ions.
Which is/are physical?
1. III only
2. II and III only
3. II only
4. I and II only
5. None of these
6. I, II and III
7. I and III only
8. I only
I) Objects made of silver become tar-
nished.
II) The boiling point of ethanol is 78◦C.
III) The red color of rubies is due to the
presence of chromium ions.
Which is/are physical?
1. III only
2. II and III only
3. II only
4. I and II only
5. None of these
6. I, II and III
7. I and III only
8. I only