Q. Efflorescence is caused if (Solved)
1. the alkaline salt is present in the bricks
2. the clay used for making bricks contain pyrite
3. the water used for pugging the clay contains gypsum
4. all of the above
- d. all of the above
1. the alkaline salt is present in the bricks
2. the clay used for making bricks contain pyrite
3. the water used for pugging the clay contains gypsum
4. all of the above