Question
Flame photometer is used in the determination
of:Solution
Flame photometry is a technique used to determine the concentration of alkali metals, particularly potassium, in a sample.
110, 156, 212, ?, 354, 440
31, 60, 118, 234, 466, ?
10, 10, 15, 30, 75, ?
12, 33, 45, 78, 123, 201, ?
250 Â Â Â 25 Â Â Â Â 5 Â Â Â Â ? Â Â Â Â 0.6 Â Â Â Â Â 0.3
What will come in place of the question mark (?) in the following series?
18, 26, 37, 51, ?, 88
289    169      121       ?      25       9
...14, 20, 29, 44, 65, ?
12, 16, ?, 48, 76, 112
12, 34, 64, ?, 140, 182