Questions

The pH of a solution, whose hydrogen ion concentration is 1 x 10 mole per litre, will be ____.

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 aroma of the invigorate morning cup of tea comes (1)/ wafting up the stairway and soon I am (2)/ sipping it slowly and reverentially without rushing. (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.
Vaibhav said to me, "Has your father returned from work?"

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‘m going to the gym now,” said Param.

An earthquake of magnitude _________________ on Richter scale has thousand times more destructive energy than an earthquake of magnitude 4.

Name the Indian entrepreneur, co-founder and owner of India's low cost airline SpiceJet.

Earth revolves around Sun. Who was the 1st one to present this theory?

There are total _________ parliamentary seats (Lok Sabha constituency) in Uttarakhand.