alleryStart learning →Unburned pure hydrogen at room temperature is?
AColourless and odourless
BColourless with sharp odour
CBlue with a sharp odour
DBrown and odourless
Answer & Solution
Correct answer: A. Colourless and odourless
Hydrogen gas itself has neither colour nor odour, distinct from the appearance of its flame.
Keep practising Hydrogen
Browse all Hydrogen questions for ICSE Class 8, or explore more Chemistry topics.
Related questions
Oxidation and reduction occurring together define which class?H2+Cl2->2HCl. Chlorine gains hydrogen, so it is?ZnO+C->Zn+CO. What describes carbon's role?Oxidation by oxygen (O) or hydrogen (H) criteria means?Oxy-hydrogen torches serve which industrial task?Which use of hydrogen provides electrical energy directly?C+H2O->CO+H2; CO+H2O->CO2+H2. Net reaction?Which is the hydrogen-increasing water-gas shift step?