The correct answer is (A) : Antiseptic
Mixture of chloroxylenol and terpineol is known as Dettol. It acts as an antiseptic. It is applied to living tissues as it kills bacteria and stops their growth, preventing further infections.
A substance 'X' (1.5 g) dissolved in 150 g of a solvent 'Y' (molar mass = 300 g mol$^{-1}$) led to an elevation of the boiling point by 0.5 K. The relative lowering in the vapour pressure of the solvent 'Y' is $____________ \(\times 10^{-2}\). (nearest integer)
[Given : $K_{b}$ of the solvent = 5.0 K kg mol$^{-1}$]
Assume the solution to be dilute and no association or dissociation of X takes place in solution.
Inductance of a coil with \(10^4\) turns is \(10\,\text{mH}\) and it is connected to a DC source of \(10\,\text{V}\) with internal resistance \(10\,\Omega\). The energy density in the inductor when the current reaches \( \left(\frac{1}{e}\right) \) of its maximum value is \[ \alpha \pi \times \frac{1}{e^2}\ \text{J m}^{-3}. \] The value of \( \alpha \) is _________.
\[ (\mu_0 = 4\pi \times 10^{-7}\ \text{TmA}^{-1}) \]
Environmental chemistry is the study of chemical processes and their impacts on the natural environment. It is a multidisciplinary field that combines principles from chemistry, ecology, biology, and geology to understand the complex interactions between chemicals and living organisms.
Environmental chemists investigate how pollutants such as toxic metals, organic chemicals, and pesticides affect ecosystems, including soil, water, and air. They also develop methods to monitor and measure these pollutants, as well as techniques for their removal or remediation.
Environmental chemistry also examines the impact of natural processes on the environment, such as the cycling of nutrients and the chemical reactions that occur in the atmosphere, oceans, and soil. This research can inform policy decisions related to environmental protection and management.
Read More: Difference Between Environment and Ecology
Examples of environmental chemistry applications include studying the effects of acid rain on ecosystems, developing methods for treating contaminated water and soil, and understanding the sources and fate of greenhouse gases in the atmosphere.
Overall, environmental chemistry plays a crucial role in identifying and addressing environmental problems, and it is essential for ensuring a sustainable future for our planet.