Identify correct statements from the following:A. Area of differential thermal analysis peak is proportional to amount of sample.B. Area of differential thermogravimetric analysis curve is proportional to mass loss.C. Phase transition cannot be studied, with differential scanning calorimetry.D. Simultaneous determination of two metal ions is possible with thermogravimetric analysis.
(a)A, B and C
(b)A, B and D
(c)B, C and D
(d)A, C and D
Answer
Answer: B ✓ checked by 4AB · confidence high
Explanation
The DTA peak area is proportional to the amount of sample, the DTG curve area to the mass lost, and TGA can determine two metals (e.g. Ca/Mg oxalates) at once. DSC is routinely used for phase transitions, so C is false. A, B and D (b).