Questions

If the electronic configuration of elements A and B are 1S2, 2S2 2P6, 3S1 and 1S2, 2S2 2P6, 3S2 3P4 respectively, then the formula of the compound formed by the combination of these elements will be:

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: Biographies of great men can also help us in learning good manners.
Q: Courtesy and politeness is the key to good manners.
R: No doubt these are little words but if they are spoken at the right moment and in a soft and sweet voice, they are bound to work wonders.
S: The use of polite words like "Sorry", "Please", "Thank you", "Beg your pardon", "Sir" etc. creates a healthy impact on the minds of others.

Article 36 to Article 51 of Indian Constitutional mainly deals with Directive Principles of State Policy, given in ______ of Indian Constitution.

____ jointly launched International Solar Alliance (ISA) at Conference of Parties (CoP21) Climate Conference held in Paris, France on 1st December 2015.

Geographical Indication (GI) is related to ___ having unique geographic origin and evolution over centuries.

The study of human evolution indicates that all of us belong to a single species that evolved in

International Chess Day is celebrated annually on

If the angles of a triangle are in the ratio of 2:3:4, then the difference of the measure of greatest angle and smallest angle is