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All the substance listed below are ferti...

All the substance listed below are fertilizers that contribute nitrogen to the soil. Which of these is the richest source of nitrogen on a mass percentage basis ? a) Urea b) Ammonia

A

Urea ,`(NH_(2))_(2) CO`

B

Ammonium nitrate ,`NH_(4)NO_(3)`

C

Nitric oxide , NO

D

Ammonia , `NH_(3)`

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NARENDRA AWASTHI-STOICHIOMETRY-Level 1 (Q.31 To Q.60)
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  2. The law of multiple proportion is illustrated by the two compounds a) ...

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  3. All the substance listed below are fertilizers that contribute nitroge...

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  4. One mole of element X has 0.444 times the mass of one mole of element ...

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  5. A given sample of pure compound cotains 9.81 gm of Zn,1.8 xx 10^23 ato...

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  6. The formula of an acid is HXO2. The mass of 0.0242 moles of the acid i...

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  7. What is the empirical formula of vanadium oxide if 2.74g of the metal ...

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  8. Determine the empirical fromula of kelvar, used in making bullet proof...

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  9. The hydrate salt Na2 CO3.xH2O undergoes 63%loss in mass on heating and...

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  10. A 6.85g sample of the hydratedSr(OH)2.x H2O is dried in an oven to giv...

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  11. What percentage of oxygen is present in the compound CACO3.3Ca3(PO4)2?

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  12. Deildrin, an insecticide, contains C,H,Cl and O. Combustion of 29.72 m...

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  13. A gaseous compound is composed of 85.7% by mass carbon and 14.3% by ma...

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  14. Complete combustion of 0.858 g of compound X given 2.64g of CO2 and 1....

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  15. The sulphate of a metal M contains 9.87% of M. This sulphate is isomor...

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  16. In an organic compound of molar mass 108 gm mol^-1 C, H and N atoms ar...

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  17. On analysis, a certain compound was found to contain 254g of iodine (a...

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  18. An element A is teravalent and another element B is divalent. The form...

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  19. A compound used in making nylon, contains 43.8% oxygen. There are four...

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  20. Suppose two elements X and Y combine to form two compounds XY(2) and X...

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