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Which reaction is endothermic in nature ...

Which reaction is endothermic in nature ?

A

`CaCO_(3) rarr CaO+CO_(2)`

B

`C+1//2O_(2) rarr CO`

C

`NaOH+HCl rarr NaCl+H_(2)O`

D

`CH_(4)+2O_(2) rarr CO_(2)+2H_(2)O`

Text Solution

Verified by Experts

The correct Answer is:
A
Decomposition of `CaCO_(3)` is made on heating.
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P BAHADUR-THERMOCHEMISTRY-Exercise 3a objective problems
  1. The standard heat of combustion of solid boron is equal to :

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  2. The compound with negative value of heat of formation are called :

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  3. Which reaction is endothermic in nature ?

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  4. Which plot represents for an exothermic reaction ?

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  5. For the reaction ,3O(2)rarr 2O(3),DeltaH=+ve. We can say that :

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  6. The enthalpy changes of formation of the gaseous oxides of nitrogen (N...

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  7. The heats of neutralisation of four acidsA,B,C and D are -13.7,-9.4,-1...

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  8. Which fuel provides the highest calorific values ?

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  9. In a flask, colourless N(2)O(4) is in equilibrium with brown-coloured ...

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  10. The difference between the heats of reaction at constant pressure and ...

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  11. The temperature of a 5mL of strong acid increases by 5^(@) when 5 mL o...

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  12. Heat of combustion of CH(4),C(2)H(4),C(2)H(6) are -890,-1411 and -1560...

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  13. In which case of mixing of a strong acid and a base each of 1N concent...

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  14. The dissociation energy of CH(4) and C(2)H(6) are respectively 360 and...

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  15. Given that , A(s) rarr A(l)DeltaH=x A(l) rarr A(g), DeltaH=y The...

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  16. A person requires 2870kcal of energy to lead normal daily life. If hea...

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  17. If, combustion of 4g of CH(4) liberates 2.5kcal of heat, the heat of c...

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  18. A solution of 500mL of 2M KOH is added to 500mL of 2M HCl and the mixt...

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  19. Under the same conditions, how many mL of 1M KOH and 0.5M H(2)SO(4)sol...

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  20. AB,A(2) and B(2) are diatomic molecules. If the bond enthalpies of A(2...

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