Statement 1: Two isotopes of the same element have the same mass number Statement 2: Isotopes have the same number of protons.

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

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

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Statement 1 is correct but Statement 2 is not correct.

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Statement 1 is not correct but Statement 2 is correct.

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Both Statement 1 and Statement 2 are not correct.

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Solution

The correct option is C
Statement 1 is not correct but Statement 2 is correct.

Isotopes have the same atomic number. i.e. same number of electrons and protons.

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C^{4 +}

and

C^{4 -}

ions are highly unstable.

Choose the correct option.

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Statement 2 : The calorific value of peat is between 10.5-14.63 KJ/g.

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Statement 2: $C^{4 +}$ and $C^{4 -}$ ions are highly unstable.

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Statement 1: Two isotopes of the same element have the same mass number Statement 2: Isotopes have the same number of protons.

The correct option is C Statement 1 is not correct but Statement 2 is correct. Isotopes have the same atomic number. i.e. same number of electrons and protons.

The correct option is C
Statement 1 is not correct but Statement 2 is correct.

Isotopes have the same atomic number. i.e. same number of electrons and protons.