Questions

When a ray of light travels from a denser medium to a rarer medium, it bends

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select ‘No Error’.

The more obvious feature (1)/ of the modern world is the enormous (2)/ development of Science and Technology. (3)/ No error (4)

In September 2017, who launched ‘Pradhan Mantri LPG Panchayat Yojna’?

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/Phrase.
To put a spoke in one's wheel

Manganite is an ore/mineral of

Elements A, B and C occur as Dobereiners triads. If the atomic mass of A is 7 and that of C is 39, what will be the atomic mass of B?

Which gas is released when water is added to bleaching powder?

A solution that is at equilibrium must be