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Which of the following pairs have the sa...

Which of the following pairs have the same number of atoms?

A

16g of `O_(2)(g)` and 4g of `H_(2)(g)`

B

16g of `O_(2)` and 44g of `CO_(2)`

C

28g of `N_(2)` and 32g of `O_(2)`

D

24g of `C(s)` and 23g of `Na(s)`

Text Solution

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The correct Answer is:
C
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NARAYNA-SOME BASIC CONCEPTS IN CHEMISTRY STOICHIOMETRY (PART-I)-All Questions
  1. One mole of oxygen gas at STP is equal to ...........

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  2. Sulphuric acid reacts with sodium hydroxide as follows H(2)SO(4)+2Na...

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  3. Which of the following pairs have the same number of atoms?

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  4. Which of the following solutions have the same concentration?

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  5. Which of the following terms are unitless?

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  6. What will be the mass of one .^(12)C atom in g?

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  7. Calculate the mass per cent of calcium, phosphorus and oxygen in calci...

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  8. 45.4L of dinitrogen reacted with 22.7L of dioxygen and 45.4 L of nitro...

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  9. Calculate the average atomic mass of hydrogen using the following data...

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  10. Hydrogen gas is prepared in the laboratory by reacting dilute HCl with...

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  11. The density of 3 molal solution of NaOH is 1.110g mL^(-1). Calculate t...

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  12. If 4 g of NaOH dissovles in 36g of H(2)O, calculate the mole fraction ...

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  13. The reactant which is entirely consumed in reaction is known as limiti...

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  14. Match the following {:("(i)","88 g of CO"(2),"(a)","0.25 mol"),("(ii...

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  15. Assertion(A) The empirical mass of ethene is half of its molecular mas...

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  16. Assertion(A) One atomic mass unit is defined as one twelth of the mass...

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  17. Assertion(A) Significant figures for 0.200 is 3 where as for 200 it is...

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  18. Assertion(A) Combustion of 16g of methane give18 g of water. Reason(...

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  19. The correctly reported answer of the addition of 154.21, 6.142 and 23 ...

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  20. Area of nuclear cross-section is measured in 'Barn'. It is equal to

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