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Question

Statement 1 : The reaction of hydrogen with oxygen to form water is an exothermic reaction.
Statement 2: Water molecules have polar covalent bonds.

A

Both Statement 1 and Statement 2 are correct and Statement 2 is the correct explanation of Statement 1.

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B

Both Statement 1 and Statement 2 are correct and Statement 2 is not the correct explanation of Statement 1.

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C

Statement 1 is correct but Statement 2 is not correct.

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D

Statement 1 is not correct but Statement 2 is correct.

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E

Both the Statement 1 and Statement 2 are not correct.

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Solution

The correct option is B

Both Statement 1 and Statement 2 are correct and Statement 2 is not the correct explanation of Statement 1.


Statement 1 : The reaction of hydrogen with oxygen to form water is an exothermic reaction.
In an exothermic reaction, the energy of reactants is higher than the energy of products. Energy is given out during exothermic reaction.
Statement 2: Water molecules have polar covalent bonds.
The electronegativities of O and H significantly differ. Due to this, the covalent bond has polar nature.
Both Statement 1 and Statement 2 are correct and Statement 2 is not the correct explanation of Statement 1.

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