Neco Chemistry Questions
Question 106:
The most efficient absorber of ultraviolet radiation in the atmosphere is ____________
View Answer & ExplanationQuestion 107:
When dust particles collide randomly in a beam of Sunlight, the phenomenon observed is known as ____________
View Answer & ExplanationQuestion 108:
\( ^{234}_{90}Th → ^{234}_{91}Pa + X \)
In the nuclear reaction above, X is ____________
View Answer & ExplanationIn the nuclear reaction above, X is ____________
Question 109:
What is the colour of phenolphthalein indicator in a basic medium?
View Answer & ExplanationQuestion 110:
Which of the following will Increase the rate of reaction of Chips of a metal M as shown in the equation below?
M(s)+2HC1(aq) → MCI2 (aq) + H2(g)
View Answer & ExplanationM(s)+2HC1(aq) → MCI2 (aq) + H2(g)