New RBI Grade B 2025 Notification will come Soon! Enroll Here

    Question

    Which of the following statements is correct regarding

    the cyanide sensor developed by researchers at the Central University of Kerala?
    A The sensor was developed by a team led by Dr. Ravi Kumar Kanaparthi and is highly sensitive and selective for detecting cyanide in water and food products. Correct Answer Incorrect Answer
    B The sensor changes color from colorless to yellow upon detecting cyanide, providing a simple visual cue. Correct Answer Incorrect Answer
    C The World Health Organization (WHO) limits cyanide concentration in water to 0.19 mg/L, and the sensor is designed to detect levels above this limit. Correct Answer Incorrect Answer
    D The sensor was primarily tested on cyanide detection in mango extracts and has been developed into a strip for easy field testing. Correct Answer Incorrect Answer
    E The findings were published in the Journal of Analytical Chemistry, with ongoing work to adapt the sensor for quantitative cyanide estimation. Correct Answer Incorrect Answer

    Solution

    • Option A is correct: The sensor was indeed developed by a research team at the Central University of Kerala led by Dr. Ravi Kumar Kanaparthi and is highly sensitive and selective for detecting cyanide, enhancing safety in water and food products. • Option B is incorrect: The sensor changes color from yellow to colorless upon detecting cyanide, not the other way around. • Option C is incorrect: While the WHO limits cyanide concentration in water to 0.19 mg/L, the sensor is designed to detect even lower concentrations, not just those above this limit. • Option D is incorrect: The sensor was tested on cyanide detection in tapioca extracts, not mango extracts. • Option E is incorrect: The findings were published in the Journal of Photochemistry and Photobiology A: Chemistry, not in the Journal of Analytical Chemistry.

    Practice Next

    Relevant for Exams: