Questions

Aromatic hydrocarbons contain at least _____ benzene like ring in their molecules.

Which was not produced by volcanic outgassing?

The question below consists of a set of labelled sentences. These sentences, when properly sequenced form a coherent paragraph. Select the most logical order of sentences from among the options.

P: World War I began in 1914, after the assassination of Archduke Franz Ferdinand, and lasted until 1918.
Q: Thanks to new military technologies and the horrors of trench warfare, World War I saw unprecedented levels of carnage and destruction.
R: During the conflict, Germany, Austria-Hungary, Bulgaria and the Ottoman Empire (the Central Powers) fought against Great Britain, France, Russia, Italy,
Romania, Japan and the United States (the Allied Powers).
S: By the time the war was over and the Allied Powers claimed victory, more than 16 million people – soldiers and civilians alike – were dead.

Who discovered Nitrogen?

Blood is red in colour due to the presence of __________

Which one of the following areas of India is covered by tropical evergreen forest?

The cell walls of many organisms of Fungi kingdom are made of a tough complex sugar called ______.

If rsin∅ =1, rcos∅=√3, then the value of r2tan∅ is