5)The conversion of vapours to liquid is known as....
6)The combination of calcium and fluorine makes the compound......
7)Oxygen gas contains.... atoms.
8)....gave the laws of chemical combination .
9)SI unit of measuring temperature is...
10)At 373K,water is at... state.
Q4. Match the followings. (5M)
Column A Column B
1)Boron i) Mg
2) Argon ii) Au
3) Zinc iii)Hg
4)Gold iv) B
5)Silver v) I
6)Magnesium vi) Fe
7) Potassium vii) Ar
8)Mercury viii) Ag
9)Iodine ix) Zn
10)Iron x) K
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Condensation
Mineral Fluorite
Two
Antoine Lavoisier
Kelvin scale
- Boron - B
- Argon - Ar
- Zinc - Zn
- Gold - Au
- Silver - Ag
- Magnesium - Mg
- Potassium - K
- Iodine - I
- Iron - Fe
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