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Nitrous acid (HNO2) is an unstable compound when prepared by the following reaction: HCl (g) + NaNO2 (s) ? HNO2 (l) + NaCl (s). As the product of the above reaction is unstable, t
second objection of kekule struture
The number of orbitals in 2p sub-shell is : (1) 6 (2) 2 (3) 3 (4) 4 Ans: 3
observation reaction of alcohol and phenol with sodium hydroxide
Principle underlying the quantitative analysis: In flame photometry, the thermal energy from flame is utilized to convert the analyte within gaseous atoms and then to excite t
GROUP 12: ZINC, CADMIUM, AND MERCURY Group 12 substance have the electron design ( n -1) d 10 ns 2 with n =4, 5 and 6 for Zn, Cd and Hg, respectively. They are formally pa
Terylene: Preparation: terylene is prepared by a polyconensation reaction between a dicarboxylic acid and a idol. Properties: a fully aliphatic polyester are not of muc
The molecule having one unpaired electron is: (1) NO (2) CO (3) CN - (4) Fe Ans: NO
Suppose that we treated the polymer as an "ideal chain." If one ?xes the ?rst monomer of the polymer chain, how many con?gurations would be accessible? What is the con?gurationa
Q. What is speed of light wave? Ans. Light is just one type of wave. Like all waves it can be characterized by frequency, wavelength and amplitude. Similarly, light waves ca
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