Questions

1. Filing an RTI application with the Delhi government is now just a click away. Delhi became the second state to launch e-RTI portal that will enable citizens to file online Right to Information (RTI). Maharashtra is the first state to launch the online RTI platform.

2. The portal launched recently will enable citizens to file RTI and seek information related to 172 departments of the Delhi government including the office of the CM and his ministers.

3. The e-RTI portal, which has been designed by the National Informatics Centre (NIC), includes filling of application, payment of fees and getting replies online.

A pure substance can be defined as any single type of material that has not been contaminated by another substance. In chemistry, a pure substance has a definite composition. It can be a compound or an element. A pure substance is considered to be a material that consists of one type of "building block" of matter.

Examples of pure substances include tin, sulfur, diamond, water, pure sugar (sucrose), table salt (sodium chloride) and baking soda (sodium bicarbonate).

Tin, sulfur, and diamond are examples of pure substances which are chemical elements. All elements are pure substances.

Water, sugar, salt and baking soda are pure substances which are chemical compounds. Chemical compounds also are pure substances

 It is a strange sequence. Each number describes the resemblance of the previous one, except the first one.

11 describes the previous '1' which contains one '1'

21 describes the previous '11' which contains two '1'

1211 describes the previous '21' which contains one '2' and one '1'

111221 describes the previous '1211' which contains one '1', one '2' and two '1'.

So the next sequence will be 312211, that is the previous '111221' contains three '1', two '2' and one '1'.