Questions

Which of the following layers of the atmosphere makes Radio Communication possible?

Find the odd word/letters/number pair from the given alternatives.

Who wrote the book "The Arabian Nights"?

Amir Khusrow was the disciple of whom?

Number of Sigma and Pi bonds in benzene, respectively is

The number of free electrons in the outermost shell of carbon atoms in diamand is

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'.
No sooner did I come out of my home to go to market (1)/ when it started raining heavily (2)/ which drenched me completely. (3)/ No Error (4)

In general enzymes are what kinds of molecules?