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Which of the following has largest numbe...

Which of the following has largest number of atoms?

A

0.5 g atom of Cu

B

0.635 g of Cu

C

0.25 moles of Cu-atom

D

1 g of Cu

Text Solution

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The correct Answer is:
A
0.5 g atom of Cu
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MODERN PUBLICATION-SOME BASIC CONCEPTS OF CHEMISTRY -MULTIPLE CHOICE QUESTION (LEVEL-II)
  1. 1.0 g of an oxide of metal M contained 0.5 g of M and 4.0 g of another...

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  2. The molar masses of oxygen and sulphur dioxide are 32 and 64 respectiv...

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  3. Which of the following has largest number of atoms?

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  4. Which of the following has maximum number of molecules ?

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  5. Two flasks A and B of equal volume contain 2 g of H2 and 2 g of N2 ...

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  6. 2.24 L of N2 at N.T.P. contain same number of molecules as are presen...

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  7. The number of water molecules present in a drop of water weighing 0.01...

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  8. The number of silver atoms present in a 90% pure silver wire weighing ...

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  9. A given sample of AlCl3 contains 6.02 xx 10^20 Al^(3+) ions. The ...

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  10. What weight of CO(2) will contain same number of oxygen atoms as are p...

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  11. The number of atoms in 52 u of He is:

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  12. If one atom of hydrogen weighs 1.65 xx 10^(-24) g, then mass of one a...

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  13. The volume of one molecule of water is (density of water = 1 g ml^(-1)...

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  14. One mole of hydrogen peroxide (H2O2) has a mass same as that of

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  15. 19.7 kg of gold was recovered from a smuggler. How many atoms of gold ...

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  16. A gaseous mixture contains oxygen and nitrogen in the ratio of 1:4 by ...

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  17. 0.5 mol of BaCl2 is mixed with 0.2 mol of Na3PO4 . The maximum numb...

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  18. 4.0 grams of caustic soda contain

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  19. One litre of a gas at S.T.P. weighs 1.16 g. It can possibly be

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  20. 12 g of magnesium (atomic mass 24) on reacting completely with acid gi...

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