Questions

Which of the following is a greenhouse gas or a gas which can deplete the ozone layer?

An element A forms an oxide with formula A3O4. What is the valency of element A?

Which is the only one example of Mollusca Phylum?

The sentences given with blanks are to be filled with an appropriate word(s). Four alternatives are suggested for each question. For each question, choose the correct alternative and click the button corresponding to it.

The quake also_______ mudslides on the outskirts of the city.

Four words are given, out of which only one word is spelt correctly. Choose the correctly spelt word and click the button corresponding to it.

A covex mirror of focal length f (in air) is immersed in a liquid (u=4/3). The focal length of the mirror in the liquid will be :

Which of the following has maximum bio-diversity?

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".

If all of us (had been) philosophical thinkers, we would not have been deceived by scheming politicians all these years.