Questions

Hyderabad (Telangana) is situated on the banks of river Musi.Musi Riveris a tributary of the Krishna River in the Deccan Plateau flowing throughTelanganastate in India.Hyderabadstands on thebanks of Musi river, which divides the historic old city and the new city. HimayatSagar and Osman Sagar are dams built on it which used to act as a source of water for Hyderabad.

Starting with the 10 at the top, one set of numbers increases by 3 each time, written in alternate boxes as you move down the diagram, and the other set of numbers decreases by 2,written in the boxes remaining

In this chemical reaction chlorine change oxidation number from 0 to -1 (reduction) and bromine change oxidation number from -1 to 0 (oxidation).

Chlorine is stronger oxidation reagent than bromine.

In VIIA or group 17 (halogen elements) there are six elements: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At) and tennessin(Ts).

They have high electronegativity because they have seven valence electrons in their outermost energy level, so they can gain an electron to have the octet rule.  

Going down in the group, element are weaker oxidazing reagent and less reactive.