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A catalyst increases the...

A catalyst increases the

A

rate of forward reaction only

B

free energy change in the reaction

C

rates of both forward and reverse reactions

D

equilibrium constant of the reaction.

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The correct Answer is:
C
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Each question contains STATEMENTS-1 (Assertion) and STATEMENT -2 (Reason). Examine the statements carefully and mark the correct answer according to the instructions given below: STATEMENT-1: Catalyst may increase the rate constant to a large extent. STATEMENT-2:By using suitable catalyst, we can significantly increase yield.

Assertion: A reaction cannot become fast by itself unless a catalyst is added. Reason: A catalyst always increases the speed of a reaction. (a)If both (A) and (R) are correct, and (R) is the correct explanation of (A) (b)If both (A) and (R) are correct, but (R) is the correct explanation of (A). (c)If (A) is correct, but (R) is incorrect. (d)If (A) is incorrect, but (R) is correct.

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RESONANCE ENGLISH-CHEMICAL EQUILIBRIUM-Advanced Level Problems (Part-3)(Stage-1)
  1. The equilibrium constant for the gaseous reaction H(2)+Cl(2)hArr2HCl i...

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  2. Given the equilibrium system NH(4)Cl(s)hArr NH(4)^(+)(aq)+Cl^(-)(aq)...

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  3. A catalyst increases the

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  4. For the reaction, N(2)+3H(2)hArr2NH(3), the units of K(c) "and" K(p) r...

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  5. A 0.20 M solution of methanoic acid has degree of ionization of 0.032....

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  6. The equilibrium constant for the reaction N(2)+3H(2)hArr2NH(3) is 70 a...

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  7. For the reaction: 4NH(3)(g)+7O(2(g))hArr4NO(2(g))+6H(2)O(g).K(p) is ...

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  8. When K(c)gt1 for a chemical reaction,

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  9. What will be the effect to increased pressure in the following equilib...

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  10. In which reaction will an increase in the volume of the container favo...

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  11. Which of the following changes the value of the equilibrium constant ?

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  12. Consider the equilibrium reaction: 4NH(3((g)))+3O(2((g)))hArr2N(2((g...

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  13. Equilibrium constants K(1) and K(2) for the following equilibria NO(...

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  14. A catalyst speeds up a chemical reraction by

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  15. For the reaction 2HIhArrH(2)(g)+I(2)(g)

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  16. consider the following gaseous equilibrium with equilibrium constant K...

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  17. The equilibrium constant K(c) for the reaction, 2NaHCO(3)(s)hArrNa(2...

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  18. For the following reaction, the value of K change with N(2)(g)+O(2)(...

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  19. For the reaction PCl(3)(g)+Cl(2)(g)rarrPCl(5)(g),K(c) is 26 at 250^(@)...

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  20. At 445^(@)C,K(c) for the following reaction is 0.020. 2HI(g)rarrH(2)...

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