Question

Two elements A and B combine to form compound X and Y. For the fixed mass of A masses of B combine for the compound Xand Y that are in the ratio of 3:7. If in compound X , 4 gram of A and 12 gram of B then in cplompound Y, 8 gram of A will combine ___________ gram of B​

Answer 1

Answer:

56

Mass of A is fixed

Mass =12 gm

g=

3

12

=4 gm

∴4 gm A combines with 4 gm B

A:B

48 m:7×4

49 m:23 gm B

∴ For 8 gmA→28×2

56 gm B

∴ For 8 gm of A will combine with 56 gm of B

Answer is option B (56)

solution

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