Statement 1: At the same temperature and pressure, 1 L of hydrogen gas and 1 L of neon gas have the same mass.
Statement 2: Equal volumes of ideal gases at the same temperature and pressure contain the same number of moles.

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 but Statement 2 is not the correct explanation of Statement 1

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Statement 1 is correct but statement 2 is incorrect

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Statement 1 is incorrect but statement 2 is correct

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Both the statement 1 and statement 2 are incorrect

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Solution

The correct option is D
Statement 1 is incorrect but statement 2 is correct

Statement 1: At the same temperature and pressure, 1 L of hydrogen gas and 1 L of neon gas have the same volume.
Statement 2: Equal volumes of ideal gases at the same temperature and pressure contain the same number of moles.
For example, 1 mole of any gas at STP will occupy a volume of 22.4 L.
Hence, statement 1 is not correct but statement 2 is correct.

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Statement2: In absence of any external force in 3D space, at any time during its flight Projectile's velocity has only two components.

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

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Statement $2 : (p \Rightarrow q) \Leftrightarrow (\sim q \Rightarrow\sim p)$ is a tautology.

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Statement 1: At the same temperature and pressure, 1 L of hydrogen gas and 1 L of neon gas have the same mass.Statement 2: Equal volumes of ideal gases at the same temperature and pressure contain the same number of moles.

Statement 1: At the same temperature and pressure, 1 L of hydrogen gas and 1 L of neon gas have the same mass.
Statement 2: Equal volumes of ideal gases at the same temperature and pressure contain the same number of moles.