GS PrelimsScience and TechnologyInnovation in Energy Technology2025

In the context of electric vehicle batteries, consider the following elements : 1. Cobalt 2. Graphite 3. Lithium 4. Nickel How many of the above usually make up battery cathodes?

Only one

Only two

Only three

All the four

Correct Answer: Option C

Explanation

Placeholder

More Science and Technology PYQs

With reference to Unmanned Aerial Vehicles (UAVs), consider the following statements : 1. All types of UAVs can do vertical landing. 2. All types of UAVs can do automated hovering. 3. All types of UAVs can use battery only as a source of power supply. How many of the statements given above are correct?
Consider the following substances : 1. Ethanol 2. Nitroglycerine 3. Urea Coal gasification technology can be used in the production of how many of them?
Consider the following statements : 1. No virus can survive in ocean waters. 2. No virus can infect bacteria. 3. No virus can change the cellular transcriptional activity in host cells. How many of the statements given above are correct?
Consider the following statements : 1. Statement I: Activated carbon is a good and an attractive tool to remove pollutants from effluent streams and to remediate contaminants from various industries. 2. Statement II: Activated carbon exhibits a large surface area and a strong potential for adsorbing heavy metals. 3. Statement III : Activated carbon can be easily synthesized from environmental wastes with high carbon content. Which one of the following is correct in respect of the above statements?
Consider the following statements : 1. Statement I: Some rare earth elements are used in the manufacture of flat television screens and computer monitors. 2. Statement II : Some rare earth elements have phosphorescent properties. Which one of the following is correct in respect of the above statements?
With reference to monoclonal antibodies, often mentioned in news, consider the following statements : 1. They are man-made proteins. 2. They stimulate immunological function due to their ability to bind to specific antigens. 3. They are used in treating viral infections like that of Nipah virus. Which of the statements given above are correct?

View all Science and Technology questions →

Master UPSC Revision

Get 10,000+ topic-wise MCQs, spaced repetition, daily CSAT challenges, and detailed performance analytics.

Coming Soon to Play Store