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H(2) + (1)/(2) O(2) rarr H(2)O, Delta = ...

`H_(2) + (1)/(2) O_(2) rarr H_(2)O, Delta = -68.39 kcal`
`K + H_(2)O rarr KOH + (1)/(2) H_(2), Delta H = -48 kcal`
`KOH + Water rarr KOH (aq), Delta H = -14 kcal`
The heat of formation of KOH in kcal is :

A

69.38 + 48 + 14

B

`-68.39 + 14`

C

`68.39 - 48 + 14`

D

`-68.39 - 48 - 14`

Text Solution

Verified by Experts

The correct Answer is:
C
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KCET PREVIOUS YEAR PAPERS-MODEL TEST PAPER 9-Chemistry
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  2. Helium atom is two times heavier than a hydrogen molecule. At 15^(@)C ...

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  3. H(2) + (1)/(2) O(2) rarr H(2)O, Delta = -68.39 kcal K + H(2)O rarr K...

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  4. Delta S^(0) will be highest for the reaction

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  5. The molecular conductance and equivalent conductances are same for the...

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  6. Which does not acts as Bronsted acid

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  7. A graph plotted between concentration of reactant consumed at any time...

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  8. The molecular weight of NaCl determined from colligative properties is...

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  9. Protons accelerate the hydrolysis of ester. This is an example of

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  10. The eq. wt. of I(2) in the change I(2) rarr IO(3)^(1-) is

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  11. H^(+) ions are reduced at platinum electrode prior to

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  12. The oxidation state of chlorine is highest in the compound

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  13. The weight of solute present in 200 ml of 0.1 M H(2)SO(4)

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  14. Which of the following atoms in its ground state is likely to be diama...

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  15. Which is likely to have the highest melting point ?

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  16. If uncertainty in position of electron is zero, the uncertainty in its...

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  17. Which contains the same number of molecules as 16 g oxygen

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  18. Glucose on reduction with Na/Hg and water gives

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  19. Aniline was acetylated. The product on nitration followed by alkaline ...

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  20. Substance containing an asymmetric carbon atom

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