WebOct 8, 2024 · All shades of brown and even green are considered normal. Only rarely does stool color indicate a potentially serious intestinal condition. Stool color is generally … WebSep 7, 2024 · A reddish brown gas 2. A colourless gas which turns moist red litmus blue. 3. A green coloured gas which turns moist blue litmus paper red. ... Reddish brown 3. Dirty green 4. white. Solution : 3. Dirty green. Question 19. During ionisation, metals lose electrons this change can be called: 1. Oxidation 2. Reduction 3. Redox 4. Displacement ...
Dinitrogen tetraoxide and nitrogen dioxide are two gases that
WebNov 22, 2013 · This highly toxic gas is characterized by a strong bleach-like odor and under certain conditions can be visible as a fog from a distance (sometimes mistaken for … WebKBr, on reaction with conc. H 2SO 4, gives reddish-brown gas which is: A bromine B mixture of bromine and HBr C HBr D NO 2 Medium Solution Verified by Toppr Correct option is A) Option (A) is correct. KBr, on reaction with conc.H 2SO 4, gives reddish-brown bromine gas. KBr+H 2SO 4 KHSO 4+HBr, 2HBr+H 2SO 4 Br 2+2H 2O+SO 2 Video Explanation hopland lubliniec
KBr , on reaction with conc. H2SO4 , gives reddish - brown gas
WebDec 4, 2024 · (iii) Introduce the given gas in the atmosphere of oxygen and if reddish brown fumes are produced, then the given sample of gas is nitric oxide and if no brown fumes are produced and the mixture remains … The reddish-brown color is a consequence of preferential absorption of light in the blue region of the spectrum (400 – 500 nm), although the absorption extends throughout the visible (at shorter wavelengths) and into the infrared (at longer wavelengths). See more Nitrogen dioxide is a chemical compound with the formula NO 2. It is one of several nitrogen oxides. NO 2 is an intermediate in the industrial synthesis of nitric acid, millions of tons of which are produced each year for use … See more Nitrogen dioxide is a reddish-brown gas with a pungent, acrid odor above 21.2 °C (70.2 °F; 294.3 K), becomes a yellowish-brown liquid below 21.2 °C (70.2 °F; 294.3 K), and converts to … See more Thermal properties NO 2 exists in equilibrium with the colourless gas dinitrogen tetroxide (N 2O 4): See more NO 2 is used as an intermediate in the manufacturing of nitric acid, as a nitrating agent in the manufacturing of chemical explosives, as a polymerization inhibitor for See more Nitrogen dioxide typically arises via the oxidation of nitric oxide by oxygen in air (e.g. as result of corona discharge): NO + 1⁄2 O 2 → NO 2 Nitrogen dioxide is formed in most combustion processes using air as the oxidant. … See more NO 2 is introduced into the environment by natural causes, including entry from the stratosphere, bacterial respiration, volcanos, and lightning. These sources make NO 2 a See more For the general public, the most prominent sources of NO 2 are internal combustion engines, as combustion temperatures are high enough to thermally combine some of the nitrogen and … See more WebWhen concentrated nitric acid is dropped on a copper disk in the bottom of a glass cylinder, a reddish-brown cloud of nitrogen dioxide gas is rapidly evolved. Curriculum Notes This demo illustrates the strong oxidizing … hopland jeffrey md