Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test General Science Chemistry Solutions
To Lower the freezing point of 1.0 kg water to -40°C, calculate the moles of NaCl needed (Kf = 1.86K kgmol-1)
1
10.75
2
21.5
3
59.5
4
More than one of the above
5
None of the above