4g each of aluminium foil and aluminium powder were intro...
4g each of aluminium foil and aluminium powder were introduced respectively into flasks P and Q.
Flask P was treated with warm bench sodium hydroxide and all the aluminium dissolved in one hour. Flask Q was treated with cold sodium hydroxide and all the aluminium dissolved in 10 minutes. What was responsible for Q reacting faster than P?
There were more aluminium atoms in Q than P
The heat given off in retarded the reaction
Q generated more pressure than P during the reaction
P generated more pressure than Q
Q has a greater surface area for the reaction than P
Correct answer is E
No explanation has been provided for this answer.
The type of iron that is best suited for welding, making nails, chains and iron rods is? ...
The purity of a solid sample can best be determined by its ...
Which of the following gases is light than air?...
The green house effect is a climatic condition associated with the presence of excess ...