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Question

In an experiment, 15 gm of a compound X is heated in a closed glass container to give compounds Y and Z. The total mass of the compounds Y and Z is ______.


A

15

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B

30

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C

20

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D

10

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Solution

The correct option is B

30


The mass of reactant = 15 gm

For a chemical reaction,

The mass of products (new compounds formed) = mass of reactants = 15 gm.

Hence, the answer is 15 gm.


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