Question

3 Four students A, B, C and D verified 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:
Student
Colour of reaction
mixture after mixing
Mass of reaction
mixture in the beaker
including mass of
beaker
A
B
White precipitate
Brown precipitate
White precipitate
Brown precipitate
C
383.39
393.39
373.3g
363.39
The correct observation is that of student
(a)
(c) C
(b) B
(d) D​

Answer 1

Answer:

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