Hello student,
I hope you are doing well.
In compound B, 32 parts of X react with 84 parts of Y,
=> In compound B, 16 parts of X react with 42 parts of Y,
In compound C, 16 parts of X react with x parts of Y,
The ratio of masses of Y which combine with fixed mass of X in compounds B and C is 3:5
B | 42 3
C | x 5
=> x = (42X5)/3 = 70
So, the answer is 70 parts.
I hope it helps.
Question : The simplified form of $(7 x+4 y)^2+(7 x-4 y)^2$ is:
Option 1: $98 x^2+32 y^2$
Option 2: $98 x^2+32 y^2-5 x y$
Option 3: $32 x^2+98 y^2$
Option 4: $98 x^2-32 y^2$
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