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Question

Statement 1 : Candles can be safely stored at room temperature, even though their reaction with air is spontaneous at room temperature.
Statement 2 : The reaction that takes place when a candle is burned involves a decrease in entropy.

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 D

Statement 1 is correct but Statement 2 is not correct.


Statement : If equal masses of sodium metal and chlorine gas are allowed to react, some sodium will be left over after all the chlorine is used up.
The molar mass of chlorine is higher than the molar mass of sodium. Hence, for equal masses, the number of moles of chlorine will be smaller than the number of moles of sodium.
Statement 2 : The reaction required twice as many atoms of sodium as the molecules of chlorine.
2Na+Cl22NaCl
Statement 1 is correct but Statement 2 is not correct.

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