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Explain the following observations:
(i) Generally there is an increase in density of elements from titanium (Z = 22) to copper (z =29) in the first series of transition elements.
(ii) Transition elements and their compounds are generally found to be good catalysts in chemical reactions.
YES,LiAlH 4 be used to reduce nitro group to amino group in hydrogenation
all
#IONISATION ENERGY OF ELEMENTS..
When an electron jumps from lower to higher orbit, its energy : (1) Increases (2) Decreases (3) Remains the same (4) None of these Ans: Increases
Q. Describe about Electron Configurations? As you will study the number and arrangement of electrons around the nucleus of an atom determines its chemical properties. Consequen
What is mole?
Describe the following electrochemical methods in terms of their working principles instrumentation and applications i. Potentiometry ii. polarography iii. Conductometry
Illustrate process of extrusion. In this process a round heated billet of metal which is placed in a container is forced out through a die in a press. This process is normally
PFEFFER METHOD
The quantum number which specifies the location of an electron as well as energy is : (1) Principal quantum number (2) Azimuthal quantum number (3) Spin quantum number
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