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Energy difference is maximum between which of the consecutive energy levels in an atom? Ans) According to the line spectrum of hydrogen maximum energy is there between FIRST AND
Indicate whether the following thermal reactions are allowed concerted reactions by the Woodward-Hoffmann criteria. Classify the reaction according to type. On the basis of
When 100 ml of M/10 H2SO4 is mixed with 500 ml of My/10 NaOH then nature of resulting solution and normality of excess reactant left is
what is a crystal and why do crystals have regular faces?
Q. Explain about Magnetic Separation ? This process is based on the difference in magnetic properties of minerals. If the ore but not the gangue is attracted by a magnetic fiel
What is the effect of more electronegative atom on the strength of ionic bond: (1) Decreases (2) Increase (3) Decreases slowly (4) Remains the same Ans: Increase
Which electronic configuration is not observing the ( n+ 1) rule: (1) 1s 2 , 2s 2 , 2p 6 , 3s 2 , 3p 6 , 3d 1 , 4s 2 (2) 1s 2, sp 2 , sp 6 , 3s 2 , 3p 6 , 3
Explain the two peaks in the diagram. How can a living cell control the position of the second peak to adapt the properties of its membrane to the demands of life? In blood, li
The quantum numbers for the outermost electron of an element are given below as n= 1, l=0, m=0, s = 1/2 . The atoms is: (1) Lithium (2) Beryllium (3) Hydrogen (4)
Q. Illustrate Oxidation States of f-block? The addition of the first three ionisation energies of the lanthanides is comparatively low, so the elements are highly electropositi
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