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The magnetic quantum number for an electron when the value of principal quantum number is 2 can have:
(1)3 values
(2) values
(3)9 values
(4)6 values
Ans: 3 values
3d 10 4s0 electronic configuration exhibits by; (1) Zn ++ (2) Cu ++ (3) Cd ++ (4) Hg ++
volcanization methiods
Iodine value - Analysis of oils and fats Iodine value of a oil or fat is a measure of its amount of unsaturation. It is proved as the number of grams of iodine taken up by 100
Compare the combustion energy stored in a 1 litre bottle of propane and butane. Suppose that the product temperature is 100°C. The density of liquid propane is 0.493 g cm -3
Q. Define Conjugate acid-base pair and buffer? Buffers are substances that resist changes in pH. To "balance pH" means to buffer. Weak acids and bases make good buffers.
Solid CH 4 is: (1) Molecular solid (2) Ionic solid (3) Pseudo solid (4) Does not exist Ans: Molecular solid
The number of quantum numbers required to describe an electron in an atom completely is: (1) 1 (2) 2 (3) 3 (4) 4 Ans: 4
A cricket ball of 0.5 kg is moving with a velocity of 100 m/ sec . The wavelength associated with its motion is: (1) 1/ 100cm (2) 6.6 x10 -34 m
Q. Explain Specific Heat and caluclate amount of heat transferred? Ans. The amount of heat transferred to a substance depends on three things: a) amount of the substance
During a titration with EDTA, using eriochrome black T as indicator to determine Ca 2+ , an analyst obtained the following volumes of EDTA in three different trials: 5.01, 4.93 an
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