Questions

What is the chemical formula of Ozone?

Which of the following is an amphoteric oxide?

The most active ingredient in bleaching powder is

Read each sentence to find out whether there is any grammatical error in it. The error, if any, will be in one part of the sentence. If there is no error, theanswer is (E), ie ‘No error’. (Ignore the errors of punctuation, if any.)

The reason why he failed/ to attend the meeting/ with a complete presentation/ was because he was unwell./ No error

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’.

Gratitude is one of the more essential virtues for real (1)/ inner prosperity and happiness, because it (2)/ can connect us to the Divine. (3)/ No error (4)

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.
Sahil said to me, "Where will you go this holiday?"

Delhi is located on the banks of river ___.

Name the respiratory organs of insects