1/10
When ore is heated generally in presence of air, then process is called -
2/10
Reduction of oxide with carbon at high temperature is called -
3/10
The metal always found in free state is -
4/10
The main element of pitch blende ore is -
5/10
An example of halide ores is -
6/10
Which of the following mineral does not contain oxygen ?
7/10
Bauxite is concentrated by -
8/10
Gun powder is mixture of -
9/10
Which is the most reactive metal ?
10/10
Sulphur sol contains -
Result:
