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Q. Simple molecular orbital description? we can give a simple molecular orbital description of bonding in B 2 H 6 as follows. Each boron atom is sp 3 hybrid giving four sp 3
The total number of electrons that can be accommodated in all the orbitals having principal quantum number 2 and azimuthal quantum number 1 is: (1) 2 (2) 4
Application of mesomeric effect (A) Low reactivity of vinyl halides and aryl, (B) The acidic behavior of carboxylic acids, (C) Basic character comparison of aniline and e
Who modified Bohr's theory by introducing elliptical orbits for electron path: (1) Hund (2) Thomson (3) Rutherford (4) Sommerfield Ans: Sommerfield
How alkanes are prepaired?
Q. What do you mean by Dietary fibre? Dietary fibre is an imporatant ingredient in food and comprises of a diverse group of plant substances viz. celluloses, hemicelluloses, l
Among the following for which one mathematical expression γ= h/p stands: (1) De Broglie equation (2) Einstein equation (3) Uncertainty equation (4) Bohr equation A
Q. What is chlorophyll? A magnesium complex of porphyrin is called chlotophyll. the green colouring material in plants and which is essential for photosynthesis. Hemoglobin
How many grams of CO2 will be produced from burning 115.5 grams of C4H8 with 310.5 grams of oxygen given the following equation..... C4H8 + 4 O2 = 2 CO2 +4 H2O
PHOSPHORUS, ARSENIC AND ANTIMONY The bigger elements in the same group (15) as nitrogen are usually known as 'pnictogens' and their compounds with metals as 'pnictides'. Althoug
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