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The weight of oxygen gas liberated by th...

The weight of oxygen gas liberated by the heating of `2.45 g` of `KCIO_(3)` is _____

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`2KClO_(3)rarr2KCl+3O_(2)`
`2xx122.5 g rarr 3xx32g`
`"Weight of "O_(2)" obtained from 2.45 g of "KClO_(3)`
`=(2.45)/(2xx1122.5)xx3xx32="0.96 grams"`
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NARAYNA-SOME BASIC CONCEPTS OF CHEMISTRY-EXERCISE - IV
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  2. The ratio of masses of oxygen and nitrogen in a particular gaseous mix...

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  3. Versene, a chelating agent having chemical formula C(2)H(4)N(2)(C(2)H...

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  4. One mole of a mixture of CO and CO(2) requires exactly 20g of NaOH in ...

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  5. 1.23 g of Nitro Benzene on reduction with Zn + NH(4)Cl then its gives ...

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  6. A mixture of HCOOH and H(2)C(2)O(4) is heated with conc. H(2)SO(4). Th...

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  7. When burnt in air, 14.0g mixture of carbon and sulphur gives a mixture...

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  8. The oxide of a metal contains 60% of the metal. What will be the perce...

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  9. Cu(2)S and M(2)S are isomorphous in which percentage of sulphur are 2...

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  10. A sample of 1.0g of solid Fe(2)O(3) of 80% purity is dissolved in a mo...

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  11. A gaseous hydrocarbon gives upon combustion, 0.72 g of water and 3.08 ...

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  12. 10 " mL of " a gaseous organic compound containing C, H and O only was...

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  13. A hydrocarbon contains 10.5 g of carbon per gram of hydrogen. 1 L of v...

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  14. When K(2)Cr(2)O(7) mixed with H(2)SO(4) and thorooughly shaken with H(...

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  15. A 20 mL mixture of CO, CH4, and Helium (He) gases is exploded by an el...

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  16. 7.36g of a mixture of KCI and KI was dissolved in H(2)O to prepare 1 l...

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  17. Equal weights of Zn metal and iodine are mixed together and I(1) is co...

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  18. A hydrocarbon 'X' have 81% of carbon. Volume of CO(2) liberated at 298...

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  19. Gastric juice contains 3g HCl per liter. If a person produces 2.5 L of...

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  20. 50.0 kg of N(2)(g) and 10.0 kg of H(2)(g) are mixed to produce NH(3)(g...

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  21. Calcium carbonate reacts with aqueous HCl to give CaCl(2) and CO(2) ac...

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