Question

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Answer 1

Answer:

1. Gangue + Flux = Slag

Example- FeO + SiO2 = FeSiO3

2. Carbonates are converted to oxides during calcination.

3. C) Calcination is the process in which ore is heated in the absence of air.

4. Bosh is the hottest part of blast furnace and it is used for ore heating purposes.

5. It is Lewis dot structure of Argon(Ar), outer shell is stable with full filled state.

6. Examples of diatomic gases - N2,H2,O2,F2 etc.

7. Elements form compounds to attain stability by sharing or complete transfer of electrons.

8. Substance No. of electrons in outer shell (character)

i) Krypton R) 8

ii) Carbon P) 4

iii) Helium Q) 2

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