Directions: In the following question, a number sequence is given with one term missing. Choose the correct term that will continue the same pattern and replace the question mark in the given sequence.Q.4 2,14,32,56,86,?
Correct answer: D. 122
- A. 120
- B. 116
- C. 128
- D. 122
Explanation
To solve the sequence 2, 14, 32, 56, 86, ?, observe the differences between consecutive terms:14 - 2 = 1232 - 14 = 1856 - 32 = 2486 - 56 = 30The differences form the sequence 12, 18, 24, 30, which increases by 6 each time.Following this pattern, the next difference should be 30 + 6 = 36.Add this difference to the last number in the sequence: 86 + 36 = 122.Therefore, the correct answer is 122. Other options do not follow this pattern and thus are incorrect.
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About Chemical Equilibrium
Reversible reactions reach dynamic equilibrium when forward and reverse rates become equal, and Le Chatelier's principle predicts the effect of changing concentration, pressure or temperature. The chapter also covers solubility product, the common ion effect, buffer action and the conditions used in Haber's process, with equilibrium shifts distinguished from changes in the equilibrium constant.
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