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Question

2H2+O22H2O

What can be inferred from the above equation?


A

2 molecules of hydrogen combines with 1 molecule of oxygen to form 2 molecules of water.

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B

4 u of hydrogen molecules combine with 32 u of oxygen molecule to form 36 u of water molecules.

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C

2 moles of hydrogen combines with 1 mole of oxygen to form 2 moles of water.

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D

All of the given options are correct.

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Solution

The correct option is D

All of the given options are correct.


(i) 2 molecules of hydrogen combine with 1 molecule of oxygen to form 2 molecules of water.

(ii) 2 moles of hydrogen combines with 1 mole of oxygen to form 2 moles of water.

(iii) 4 u of hydrogen molecules combine with 32 u of oxygen molecule to form 36 u of water molecules.

1 mole = 6.023 × 1023 particles.

The statements (i) and (ii) represent the number of molecules involved in the reaction while statement (iii) gives the mass of the entities involved.


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