Asked in Premeth Test 46 — ElectrochemistryModerate

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.8,16,32,64,128,?

Correct answer: A. 256

  • A. 256
  • B. 384
  • C. 250
  • D. 192

Explanation

The sequence 8, 16, 32, 64, 128, ? follows a pattern where each term is the result of multiplying the previous term by 2:8 × 2 = 1616 × 2 = 3232 × 2 = 6464 × 2 = 128128 × 2 = 256Thus, the missing term is 256. Other options like 384, 250, and 192 do not fit the pattern, as they either result from multiplying by a different factor or are not products of any term in the sequence by 2.

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Electrochemistry describes electron transfer through oxidation and reduction, identifies oxidizing and reducing agents, and applies oxidation numbers to balance redox equations. It also covers electrode potential and the standard hydrogen electrode, which provides the reference for comparing the reduction tendencies of other electrodes.

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