UPSC Science & Technology Questions

If a potato is placed on a pure paper plate which is white and unprinted and put in a microwave oven, the potato heats up but the paper plate does not. This is …

Souring of milk. Which one of the following is correct in respect of the above statements?

Which one of the following is correct in respect of the souring of milk? Statement I: Milk becomes sour due to the formation of lactic acid. Statement II: Bacte…