Q: 34 (CAPF/2016)

Arrange the following substances in their order of increasing hardness:
1. Gypsum
2. Topaz
3. Fluorite
4. Feldspar
Select the correct answer using the code given below:
stats: 
0,160,552,200,248,104,160

User login

For Search , Advanced Analysis, Customization , Test and for all other features Login/Sign In .