Teaching UP B.Ed (Paper 1 & 2) Mock Test 2025 General Science Chemistry Chemical Reaction

For a first order reaction, the relationship between the time required for 99% completion of reaction (t0.99) and the time required for completion of 90% of reaction (t0.90) is

1
t0.90 = 10t0.99
2
t0.90 = 2t0.99
3
t0.90 = 10t0.90
4
t0.99 = 2t0.90
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