Question

2. Fill in the blanks with suitable words:
1. Though metals are solid at room temperature............ Is a liquid.
ii.Copper is............... Reactive than iron
iii.Metals usuallydisplace............. From acids.
iv.The gas usually filled in the electric bulb is..........
v. .............Is used in table salt to prevent goitre.
vi. The solid fuel used for cooking in rural areas is.........
vii.A liquid fuel used in homes for cooking is......... .​

Answer 1

1. mercury
2. less
3. .......
4. tungstun
5. iodine
6. coal
7. LPG

Answer 2

Answer:

1. mercury
2. less
3. nonmetals
4. nitrogen or argon
5. iodine
6. coal
7. lpg