Arrange the following in the correct increasing order of atomic size.
$\mathrm{F}, \mathrm{Cl}, \mathrm{Br}, \mathrm{I}$
$\mathrm{F}<\mathrm{Cl}<\mathrm{Br}<\mathrm{I}$
$\mathrm{I}<\mathrm{Br}<\mathrm{Cl}<\mathrm{F}$
$\mathrm{Cl}<\mathrm{F}<\mathrm{Br}<\mathrm{I}$
$\mathrm{F}<\mathrm{Br}<\mathrm{Cl}<\mathrm{I}$
Given, $\Delta G^{\circ}=-502 \mathrm{~kJ} \mathrm{~mol}^{-1}$ for the dissociation of ,
$\mathrm{Mg}(\mathrm{OH})_2(s) \rightleftharpoons \mathrm{Mg}^{2+}(a q)+2 \mathrm{OH}^{-}(a q)$ at 298 K . Find the $K_{\mathrm{sp}}$ value.
$(R=8314 \mathrm{~J} / \mathrm{mol} \cdot \mathrm{K})$
$1.2 \times 10^{-9}$
$7.9 \times 10^{-8}$
$4.1 \times 10^{-10}$
$2.6 \times 10^{-7}$
Which of the following is a water-soluble vitamin?
Vitamin A
Vitamin K
Vitamin C
Vitamin D
In a first-order reaction, the initial concentration of $A$ is $0.5 \mathrm{~mol} \mathrm{~L}^{-1}$. After 20 minutes, the concentration reduces to $0.4 \mathrm{~mol} \mathrm{~L}^{-1}$. The rate constant is (in $\mathrm{min}^{-1}$ ).
0.0051
0.0112
0.025
0.051
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