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How many unpaired electrons are present in Ni 2+ cation (atomic number = 28): (1) 0 (2) 2 (3) 4 (4) 6 Ans: 2
Q. in radioactive decay, a nucleus emits an alpha particle and two beta particle successively. show that the final nucleus is an isotope of original nucleus. Ans: Let the mass and
Q. What are the diffrent forms of energy? Ans: Kinetic energy is energy of motion. Gas molecules of a given substance move much more rapidly than do the molecules in the soli
Q. What are the Chemical Properties of Ammonia? Ans. Combustion: Ammonia does not burn in air but will burn in pure oxygen to form nitrogen and water vapor. 4NH 3 (g) +
explain nitric oxide becomes brown when released in air
Acetone - Aldehydes and Ketones It is a symmetrical or simple ketone and is the first member of the homologous sequence of ketones. In traces, it is exist in blood and urine.
1st A group because the oxides and hydrides are alkaline in nature.
find the rate constant of first order reaction if 75% of reaction is completed in 6.03 sec
3p orbitals has how many nodes
The frequency of yellow light having wavelength 600 nm is: (1) 5.0x10 14 Hz (2) 2.5 x 10 7 Hz (3) 5.0x 10 7 Hz
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