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Papaya ringspot disease is spread from plant-to-plant by vectors like aphids.
Quartz is a crystalline form of which substance?
Which catalyst is used in the hydrogenation of vegetable oils to make ghee?
What is the gas ‘Xenon’ also known as?
Itai-Itai disease is caused by exposure to which metal?
Which chemical compound is used in the indelible ink for elections?
Which of the following pollutants is the major contributor to photochemical smog?
What is the primary purpose of using bleaching powder in drinking water?
The scientific name of vitamin B12is :
Which gas turns into a liquid at the lowest temperature?
Based on the periodic trends for ionization energy, which element has the highest ionization energy?