Questions

In the process of ___, the iron is protected by a coating of zinc.

___ is used to control the fission reaction rate in a nuclear reactor as it absorbs neutrons without itself getting into fissioning.

Deficiency of which vitamin causes night blindness?

In the following question, a sentence has been given in Direct/Indirect speech. Out of the four alternatives suggested, select the one which best expresses the same sentence in Indirect/Direct speech.

I said to my father, "I want to build a raft which can hold four people ."

 In the following question, out of the four alternatives, select the alternative which will improve the bracketed part of the sentence. In case no improvement is needed, select "no improvement".

Learning (include) discovery, insight, understanding as well as accumulation of information.

How many seats are reserved for representatives of Scheduled Castes and Scheduled Tribes in Lok Sabha?

An object of 1.2 cm height is placed 30 cm before a concave mirror of focal length of 20 cm toget a real image at a distance of 60 cm from the mirror. What is the height of the image formed?

Which among the following is not an environment friendly mode of producing electricity?