Subject :NSO Class : Class 7
Observe the given figure carefully.
Read the given passage and fill in the blanks by selecting an appropriate option. In the given figure, __(i)__ reaction takes place which is a chemical change. __(ii)__ being more reactive than __(iii)__ produces gas 'X' which is __(iv)__ and it burns with a __(v)__ .
| (i) | (ii) | (iii) | (iv) | (v) | |
|---|---|---|---|---|---|
| A | Oxidation | Zn | H | SO2 | dazzling light |
| B | Displacement | H | Zn | H2 | pop sound |
| C | Displacement | Zn | H | H2 | pop sound |
| D | Reduction | Zn | S | SO2 | rotten egg smell |