Nano Applications — Prelims Questions

Which of the following statements about Nano Urea Liquid, recently in news, is/are correct? 1. It is developed by the Indian Farmers Fertiliser Cooperative Limited (IFFCO). 2. It is a nano-fertilizer that significantly reduces the requirement for conventional urea. 3. It improves crop yield and has a positive environmental impact. Select the correct answer using the code given below:

Consider the following statements regarding Carbon Nanotubes (CNTs) and Quantum Dots (QDs): 1. CNTs are known for their exceptional electrical conductivity and mechanical strength. 2. QDs are semiconductor nanocrystals whose emitted light color can be tuned by their size. 3. Both CNTs and QDs are primarily used in targeted drug delivery systems. Which of the statements given above is/are correct?

Which of the following national missions/initiatives are directly or indirectly supported by advancements in nano applications? 1. Make in India 2. Digital India 3. Swachh Bharat Abhiyan 4. Atmanirbhar Bharat Select the correct answer using the code given below:

With reference to the applications of nanotechnology in environmental remediation, consider the following statements: 1. Nanoparticles of zero-valent iron (nZVI) can be used for in-situ degradation of chlorinated organic compounds in contaminated soil and groundwater. 2. Nano-fibrous membranes are effective in capturing fine particulate matter and gaseous pollutants in air purification systems. 3. Photocatalytic nanomaterials like titanium dioxide can degrade organic pollutants in water and air when exposed to light. Which of the statements given above are correct?

With reference to nanomedicine, which of the following is NOT a primary advantage of targeted drug delivery over conventional methods?