Fill in the Blanks: General Principles & Processes of Isolation of Elements | JEE Advanced Notes | Study Chemistry 35 Years JEE Main & Advanced Past year Papers - JEE

Fill in the Blanks

1. Casseterite is ore of ........... (1980)
 Ans : Tin

Solution :  Tin. It is SnO₂. [The formula of Casseterite ore in SnO₂

2. In the thermite process ........ is used as reducing agent. (1980)
 Ans : Aluminium

Solution : Fe₂O₃ + 2Al → Al₂O₃ + 2Fe + Heat

[Thermite reaction]

3. In the basic Bessemer process for the manufacture of steel the lining of the converter is made of ........ . The slag formed consists of ...... (1980)
 Ans : Magnesia and lime; Calcium silicate

Solution : NOTE : The lining of corverter is made of magnesia & lime. Slag formed consists of CaSiO₃

4. In extractive metallurgy of zinc partial fusion of ZnO with coke is called ............... and reduction of the ore to the molten metal is called ............... .
 (smelting, calcining, roasting, sintering) (1988 - 1 Mark)

Ans : sintering, smelting