Chemistry2008
The most efficient absorber of ultraviolet radiation in the atmosphere is
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2008 NECO SSCE Chemistry Past Questions
Chemistry generally explores the substances of which matter is composed, the investigation of their properties and reactions, and the use of such reactions to form new substances.
Chemistry2008
Chlorine atom forms Cl- by
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Chemistry2008
Which of the following laws is obeyed If at constant temperature, 200cm of hydrogen at 1.5 × 10m5Nm-2pressure becomes 300cm3 at 1.0 × 105Nm-2 pressure?
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Chemistry2008
The type of reaction ethyne mainly undergoes is
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Chemistry2008
Which of the following is a component of the car exhaust?
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Chemistry2008
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)
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Chemistry2008
What is the colour of phenolphthalein indicator in a basic medium?
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Chemistry2008
\(^{234}_{90}Th → ^{234}_{91}Pa + X\)In the nuclear reaction above, X is
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Chemistry2008
When dust particles collide randomly in a beam of Sunlight, the phenomenon observed is known as
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Chemistry2008
The planet with the highest number of moon is
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Chemistry2008
Pipe-borne water is usually chlorinated in order to
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Chemistry2008
The rate of a chemical reaction is NOT affected by one of these factors
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Chemistry2008
The molecular formula of ethylbutanoate is
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Chemistry2008
A solution is prepared by dissolving I .96g of H2SO4 in 250 cm3 of its solution. What is the concentration in moles per dm3?
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Chemistry2008
The action of zinc on an acid produces
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Chemistry2008
What type of bond holds hydrogen fluoride molecules together when forming larger aggregate?
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Chemistry2008
A device used in the laboratory for intermittent production of gases without heating is
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Chemistry2008
Bauxite is the ore of
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Chemistry2008
Matter is neither created nor destroyed in the course of any chemical reactions is a statement of the law of
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Chemistry2008
pH is define as
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