Chemistry · 2019
JEE Main · 12 January 2019, Shift 1 · Q59
Decomposition of X exhibits a rate constant of 0.05 μ g / year. How many years are required for the decomposition of 5 μ g of X into 2.5 μ g?
Decomposition of X exhibits a rate constant of $\displaystyle 0.05 \mu \mathrm{~g} /$ year. How many years are required for the decomposition of $\displaystyle 5 \mu \mathrm{~g}$ of X into $\displaystyle 2.5 \mu \mathrm{~g}$ ?
Official answer
(2)
$\displaystyle 50$
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