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Which of the following has the least mas...

Which of the following has the least mass?

A

one gram atom of magnesium

B

0.9 mole nitric oxide

C

22.4 lit of nitrogen at STP

D

`6.02 xx 10^(24)` molecules of oxygen

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The correct Answer is:
A
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AAKASH SERIES-STOICHIOMETRY-PRACTICE EXERCISE
  1. Which of the following contains the maximum number of atoms?

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  2. Which of the following contains the least number of molecules ?

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  3. Which of the following has the least mass?

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  4. {:("LIST - 1","LIST - 2"),("A) 22.4 lit. at STP","1) 1 cc of "N(2)" at...

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  5. {:("LIST - 1","LIST-2"),("A) 1 mole of","1) 44 g of oxide"),("lead nit...

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  6. {:("LIST - 1","LIST - 2"),(,"(Charge of 1 mole ions)"),("A) Azide ion"...

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  7. Vapour density of a compound is 39. It contains carbon and hydrogen at...

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  8. 10ml of an alkane on complete combustion gave 40ml of CO(2) under the ...

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  9. 15 c.c. of gaseous hydrocarbon required 45 c.c. of oxygen for complete...

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  10. Two elements 'A' and 'B' (atomic weights 75 and 16 respectively) combi...

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  11. 4g of a hydrocarbon on complete combustion gave 12.571g of CO(2) and 5...

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  12. The simplest formula of a compound containing 50% of element A (at.wt=...

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  13. A hydrocarbon was found to contain 91.3%C. The molecular formula of th...

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  14. The molecular weight of an organic compound is 180. Its empirical form...

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  15. An organic compound containing Cand H has 92.3% of carbon. Its empiric...

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  16. An organic compound is found to contain C = 54.5%, 0=36.4% and H = 9.1...

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  17. {:("LIST - 1","LIST - 2"),("A) "C(2)H(6),"1) 90% of carbon"),("B) "C(2...

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  18. In the reaction between acidified KMnO(4) and FeSO(4) solution, the nu...

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  19. When 0.1 mole of BaCl(2) is treated with 0.5 mole of Na(3)PO(4), the m...

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  20. In a balanced equation H(2)SO(4)+xHIrarrH(2)S+yI(2)+zH(2)O. The va...

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