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The percentage composition composition o...

The percentage composition composition of carbon in urea, `[CO(NH_(2))_(2)]` is

A

0.2

B

0.4

C

0.5

D

0.8

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The correct Answer is:
A
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TARGET PUBLICATION-SOME BASIC CONCEPTS OF CHEMISTRY-EVALUATION TEST
  1. The percentage composition composition of carbon in urea, [CO(NH(2))(2...

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  2. Weight of 112 ml of oxygen at NTP on liquefaction would be

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  3. The largest number of molecules in

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  4. The mass of a molecule of water

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  5. The modern atomic weight scale is based on

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  6. Which of the following gives CORRECT order of increasing masses? (At...

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  7. What is the weight of oxygen required for the complete combustion of 2...

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  8. 100 mL of PH(3) on decomposition produced phosphorus and hydrogen. The...

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  9. The molecular weight of a gas is 45. Its density at STP is

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  10. 1.4 moles of phosphorus trichloride are present in a sample. How many ...

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  11. In the reaction, 4NH(3)(g)+5O(2)(g) rarr 4NO(g)+6H(2)O(g), when 1 mole...

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  12. What weight of SO(2) can be made by burning sulphur in 5.0 moles of ox...

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  13. In INCORRECT statement for 14 g of CO is .

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  14. The number of gram atom of oxygen in 6.02xx10^(24) CO molecules is

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  15. Empricial formula of a hydrocarbon containing 80 % carbon and 20% hy...

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  16. Which of the following drug ailment pairs is CORRECT?

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  17. The magnitude of femto is

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  18. The number of moles in y g of helium gas is equal to

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  19. Which of the following is NOT a fundamental SI unit?

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  20. For a reaction A+3BtoC+D the amount of C formed by starting the reacti...

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  21. In an experiment 2.16 g of copper was dissolved in nitric acid followe...

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