Which of the following types of reactions takes place bet...
Which of the following types of reactions takes place between C2H6 and the halogens?
Substitution
Polymerization
Addition
Saponification
Oxidation
Correct answer is A
Alkanes undergo a substitution reaction with halogens in the presence of light. For instance, in ultraviolet light , methane reacts with halogen molecules such as chlorine and bromine.
Which of the following statements best explains the difference between a gas and a vapour?...
The reaction Mg + H2O → MgO + H2 takes place only in the presence of?...
Which of the following processes is an endothermic reaction? ...
Carbohydrates are large molecules with the molecular formula Cx(H2O)y. In which of th...
Which metal is a constituent of both bronze and solder? ...
What is the concentration of a solution containing 2g of NaOH in 100cm3 of solution? [Na = 23, ...
Which of the following changes is physical? ...
A salt that absorbs moisture from the atmosphere without forming a solution is said to be ...