site year of excavation Leader of excavation Harappa 1921 Daya Ram Sahni, Mohenjo-Daro 1922 R.D. Banerjee, Chanhudaro 1931 N.G. Mazumdar, Kalibagan 1953 B.B. Lal, and A.N. Ghosh, Kot Diji 1955 Fazal Ahmad Khan, Lothal 1957 S.R. Rao, Surkotada 1972 J.P.joshi, 1990-91 R. S. Bisht
The Indus Valley Civilization began to decline between c. 1900-c. 1500 BCE most likely due to climate change though the reasons for its fall are still debated.
The Indus Valley Civilization is famous for its great cities like Harappa which were technologically advanced and highly cultured urban centers.
Solution : The seals were produced mainly for commercial purposes. The seals were used by traders. stamp their goods. was tied, a layer of wet clay was applied to the knot, and the seal was pressed on it leaving an imprresion. Seals were used for facilitating long-distance communication. When a bag of goods was transported, …
How were seals used? What information do they give about the Harappan trade? Read More »
Two characteristic features of the citadel are: The Citadel points to the elaborate planning that went into the development of cities and justifies that the Harappan civilisation was an urban civilisation. The presence of specific buildings and houses of the ruling class indicates some sort of political organisation and social classification.
The Great Bath The construction of the Great Bath indicates that the art of building had reached a high degree of perfection at that time.
1. The Great Bath is one of the most significant public buildings at Mohanjo-daro. 2•The Citadel The raised area of each city was called the Citadel.
Solution : The Anomalous behaviour of second-period elements Second-period elements show anomalous behaviour due toi) small size,ii) high electronegativity,iii) absence of d-orbitals andiv) they form pπ−pπ bonds and pπ−dπ bonds, but do not form a dπ−dπ bond..
Solution : The general outer electronic configuration of s, p, d and f block elements : – The general outer electronic configuration of s block elements is ns (1−2) .The general outer electronic configuration of p block elements is ns 2 np (1−6) .The general outer electronic configuration of d block elements is (n−1)d(1−10) ns …
Write the general outer electronic configuration of s, p, d and f block elements. Read More »
Solution : Liquid metal at Room temperature is Mercury (Hg) having a melting point of −38.83 0 C. The Latin name of Mercury is hydrargyrum. Mercury is also known as quicksilver.
