Boiling Point Of Water In Delhi And Leh = Same?

April 17, 2009

Do you know what IUPAC stands for? Is zero a rational or irrational number?


Enthusiastic readers like you posed these questions to Topper experts.


This week we bring you the top three questions posted by Class X students, who received the answers in 72 hours!


Subject: Mathematics


Q. Please tell whether zero is rational or irrational.


Posted by: Arihant29


A. Zero is rational as it can be written in the form p/q where p and q are integers and q is non zero like 0/1, 0/2, 0/3 etc.


Subject: Chemistry


Q. What is IUPAC?


Posted by: Nikhilgoel

A. International Union of Pure and Applied Chemistry (IUPAC) is an international non-governmental organisation established in 1919 devoted to the advancement of chemistry.

Many national chemistry societies are members of the IUPAC.

It is a well-known recognised authority in developing standards for the naming of the chemical elements and their compounds, through its Interdivisional Committee on Nomenclature and Symbols (IUPAC nomenclature).

It is a member of the International Council for Science.