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12 g of Mg will react completely with an...

12 g of Mg will react completely with an acid to give

A

1 mole of O2

B

1/2 mole of H2

C

1 mole of H2

D

2 mole of H2

Text Solution

Verified by Experts

The correct Answer is:
B
`underset(24g)(Mg) + underset(1 "mole")(H_(2)SO_(4)) to MgSO_(4) + H_(2)` (1 mole)
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FULL MARKS-BASIC CONCEPTS OF CHEMISTRY AND CHEMICAL CALCULATIONS -Additional Questions Solved(Fill in the blanks)
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  2. The oxidation number of N in NH4^(+) ion is

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  3. The number of molecules in 40 g of sodium hydroxide is ……..

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  4. The mass of one molecule of AgCl in grams is

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  5. The empirical formula of Alkene is:...........

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  7. The number of moles of H(2) in 2.24 litre of hydrogen gas at STP

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  8. The empirical formula of glucose is

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  9. The molar mass of Na(2)SO(4) is

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  10. One mole of CO(2) contains

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  11. 5.6 litres of oxygen at STP is equivalent to

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  12. 12 g of Mg will react completely with an acid to give

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  13. The empirical formula of sucrose is ........

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  14. The number of grams of oxygen in 0.10 mol of Na(2)CO(3) .10H(2)O is

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  15. The mass of 1 atom of nitrogen is

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  16. On the reaction 2Ag + H(2)SO(4) to Ag(2)SO(4) + 2H(2)O + SO(2) . Sulph...

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  17. The oxidation number of carboxylic carbon atom in CH(3)COOH is

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  18. When methane is burnt in oxygen to produce CO2 and H2O, the oxidation ...

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  19. The oxidation number of Fe in Fe(2) (SO(4) )(3) is

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  20. The oxidation number of carbon in CH(3) - CH(2)OH is

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