Subject :NSO Class : Class 7
Fill in the blanks by choosing an appropriate option.
When sugar is dissolved in water, it undergoes a (i) change but if sugar is heated in a test tube over the Bunsen burner flame, it first melts, turns brown and finally turns (ii) . The new substance formed is (iii) and the change is a (iv) change.
| (i) | (ii) | (iii) | (iv) | |
| A | Physical, reversible | Black | Charcoal | Chemical, irreversible |
| B | Physical, irreversible | Black | Coal | Chemical, irreversible |
| C | Physical, irreversible | Red | Charcoal | Chemical, reversible |
| D | Physical, reversible | Red | Coal | Chemical, reversible |