Two elements X (at.mass 16) and y(at.mass 14) combine to from compounds A,B and C. The ratio of different masses of Y which combine with a fixed mass

Question

Two elements X (at.mass 16) and y(at.mass 14) combine to from compounds A,B and C. The ratio of different masses of Y which combine with a fixed mass

Two elements X (at.mass 16) and y(at.mass 14) combine to from compounds A,B and C. The ratio of different masses of Y which combine with a fixed mass of X in A,B and C is 1:3:5. If 32 parts by mass of X combines with 84 parts by mass of Y in B, then in C, 16 parts by mass of X will combine with :
A. 14 parts by mass of Y
B. 42 parts by mass of Y
C. 70 parts by mass of Y
D. 84 parts by mass Y

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Correct Answer - C
In B, 32 parts of X combines with Y = 84 parts
`:.` 16 parts of X will combine with Y = 42 parts
Now number of parts of X in both B and C is equal.
Different masses of Y which combine with a fixed mass of X in B and C are in the ratio 3:5
`:. ("Mass of Y in B")/("Mass of Y in C")=(3)/(5)`
`(42parts)/("Mass of Y in C")=(3)/(5)`
`:.` Mass of Y in C `=(5)/(3)xx42=70` parts.