Four students A, B, C and D veriied the law of conservation of mass by performing chemical reaction between barium chloride and sodium sulphate. All of them took 107.2 g barium chloride solution and 116.1g of sodium sulphate solution and mixed them in the beaker of mass 150 g. They reported their results as follows:
Students |
Colour of reaction mixture after mixing |
Mass of reaction mixture in the beaker including mass of beaker |
A |
White precipitate |
383.3g |
B |
Brown precipitate |
393.3g |
C |
White precipitate |
373.3g |
D |
Brown precipitate |
363.3g |
The correct observation is that of student.
A. A
B. B
C. C
D. D