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When an electron jumps from L to K shell:
(1) Energy is absorbed
(2) Energy is released
(3) Energy is sometimes absorbed and sometimes released
(4) Energy is neither absorbed nor released
Ans: Energy is released
240 g of water at 20 degree C are mixed with a sample of iron at 500 degree C. The final temperature of the system is 42 degree C. Find the mass of the iron sample
Write down the molecular formula of the overall oxidation reaction of a fatty acid in these three reaction cascades. What roles do A and B play in these reaction cascades?
The freezing point of ethylene glycol is -3.2 degree-Celcius. How many grams of ethylene glycol is required in 150 L of water to achieve such temperature?
The maximum number of electrons accommodated in 5f orbitals are: (1) 5 (2) 10 (3) 14 (4) 18 Ans: 14
chemical reaction of lactic acid
what is order of reaction
Q. Extraction of Iron oxide and titanium dioxide? Iron oxide and titanium dioxide do not dissolve in the alkali and are filtered off as sludge. The solution is cooled and most
freon preparation
Develop a table for the water quality parameters of surface water (rivers and lakes), and groundwater. A sample table is given below: Water quality parameters of different
Q. Calculate Enthalpy Changes in system? Ans. It turns out that you can add reactions the same way you add algebraic equations. The enthalpy of the resulting reaction is the su
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