Q.

Statement 1 : A molecule of butane, C4H10 has a mass of 58.12 amu.

Statement 2 : One mole of butane contains 6.022  ×  1023 molecules and has a mass of 58.12 g.

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a

 Statement 1 is true and Statement 2 is false

b

Both Statement 1 and Statement 2 are false.

c

Statement 1 is false and Statement 2 is true.

d

 Both Statement 1 and Statement 2 are true 

answer is A.

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Detailed Solution

1 mole of Butane  contains  6.023×1023 molecules & its mass =Molecular mass =4(12.011)+10(1.008)=58.12g

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Statement 1 : A molecule of butane, C4H10 has a mass of 58.12 amu.Statement 2 : One mole of butane contains 6.022  ×  1023 molecules and has a mass of 58.12 g.