In which among the following respects, the white Portland cement is different from the ordinary gray Portland cement?
1. The amount of chromium, manganese, iron compounds is significantly less in white cement in comparison to gray cement
2. The setting behaviour and strength development of white cement is significantly improved from gray cement
3. Gypsum is used in the making of white cement and not in gray cement
4. Production of white cement consumes significantly more energy in comparison to gray cement
Which among the above statements is / are correct?
[A] Only 2, 3 & 4
[B] Only 1, 2 & 3
[C] Only 1, 2 & 4
[D] Only 1 & 4
Correct Answer: D [ Only 1 & 4]