Questions

Phosphorus is kept in water because

The Chemical formula of Ammonium oxalate is _____.

Among chemical properties, Mendeleev concentrated on the compounds formed by the elements with

_____ is the most ductile metal.

The deficiency of Niacin­a vitamin of B complex group causes the disease _____

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/Phrase.
To put a spoke in one's wheel

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: Forests make for beautiful natural landscapes and scenery.
Q: They offer visitors and tourists the beauty of trees and plants of all kinds and a large variety of wildlife that inhabits the area.
R: Forests are a treasure house of nature.
S: People enjoy going into the forests either on foot or on a safari.

In the following question, out of the four alternatives, select the alternative which will improve the bracketed part of the sentence. In case no improvement is needed, select "no improvement".

I closed the window just in time and (return) to my room with relief.