Define pH.

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The pH of a solution is defined as the negative logarithm to base 10 of the activity `(a_(H+))` of hydrogen ion. It can be written as : pH = -log `H^(+) = -log [H_(3)O^(+)]`.
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OMEGA PUBLICATION-EQUILIBRIUM -Multiple Choice Questions (MCQs)
  1. Define pH.

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  2. List the value of n and l for the following orbitals : 4s

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  3. For the reaction , 2HI hArr H(2) + I(2)

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  4. Equilibrium constant for the reaction 2NO(g) + Cl(2)(g) hArr 2NOCl(g) ...

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  5. k(1) and k(2) are the velocity constants of forward and backward react...

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  6. The number of electrons present in 3d of Cu+ is ........

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  7. Consider the reaction 2CO(g)+O(2)(g)hArr2CO(2)(g)+Heat Under what co...

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  8. Using s, p, d notations, describe the orbital with the quantum number....

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  9. Using s, p, d notations, describe the orbital with the quantum number....

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  10. Which of the following is strongest acid ?

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  11. What is the structural formula of 2-Chloro-2-methylpropane?

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  12. What is the structural formula of 2-Chlorobutane?

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  13. What is the structural formula of 1-Chloro-3-methylpentane?

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  14. What is the structural formula for 1-Chloro-2,2-dimethylpropane?

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  15. What is the structural formula for Ethylene dibromide?

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  16. What is the structural formula of 1-Bromo-2,3-dichlorobutane?

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  17. The pH indicators are

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  18. What is incorrect about buffer solution ?

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  19. Precipitation takes place when the ionic product

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  20. Which of the following is an example of heterogeneous equilibrium ?

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  21. For the reaction, a A + b B rarr Products. According to law of mass ac...

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