NTA Abhyas 2020
- Exam
- NTA Abhyas
- Year
- 2020
- Subject
- Chemistry
- Chapter
- p Block Elements (Group 13 & 14)
NTA Abhyas 2020 · Chemistry · p Block Elements (Group 13 & 14)
Alumino-thermite process is used for the extraction of metals,...
Alumino-thermite process is used for the extraction of metals, whose oxides are
Options
- AFusible
- BNot easily reduced by carbon
- CNot easily reduced by hydrogen
- DStrongly basic
Correct answer
B. Not easily reduced by carbon
Step-by-step solution
Alumino thermite process involves reduction of oxides such as etc. to metals with aluminum.
{\text{Cr}_{2} {O}_{3} \text{+}\text{2Al} \to {\text{Al}_{2} {O}_{3} \text{+}\text{2Cr;}\text{\Delta H}\text{=} - \text{ve}
{\text{Cr}_{2} {O}_{3} \text{+}\text{2Al} \to {\text{Al}_{2} {O}_{3} \text{+}\text{2Cr;}\text{\Delta H}\text{=} - \text{ve}