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The number of electrons involved in the bond formation of N 2 molecule : (1) 2 (2) 4 (3) 6 (4) 10 Ans: 6
Evidence in favor of Kekule's structure 1. Benzene combines along with 3 molecules of hydrogen or three molecules of chlorine. It also collides along with 3 atoms of ozone to
Short note on synthetic rubber. S ol. Synthetic rubber: main types of synthetic rubbers: 1. Styrene rubber: Buna-S; Bu-Butadiene; Na=sodium; = Styrene
Estimation of hardness of water sample by EDTA
What are the lattice vacancies The lattice vacancies are a stable feature of metals at all temperatures above absolute zero. By successive jumps of atoms, just like playing Chi
(a) What is hardness of water? What do you understand by temporary and permanent hardness? OR Explain tempora
An open test tube at 293 K is filled at the bottom with 24.2 cm of Hg, and 11.2 cm of water is placed above the Hg. Calculate the pressure at the bottom of the test tube if the at
decomposition of carbonates
Organic Compounds - Organic Chemistry The term 'organic' signifies life. Hence, every molecule that was prepared directly or indirectly from living organisms, animals and plant
Q. Extraction of f-block element ? As all the lanthanides occur together in nature, their extraction involves two main steps: (i) separation from one another and (ii) reducti
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