2017
The shape of ammonia molecules is
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2017 JAMB UTME Chemistry Past Questions
2017
\(^{226}_{88}Ra\) → \(^x_{86}Rn\) + alpha particle
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2017
When ΔH is negative, a reaction is said to be
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2017
The ideal gas laws and equations are true for all gases at
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2017
The alkyl group is represented by the general formula
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2017
The enzyme used in the hydrolysis of starch to dextrin and maltose is
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2017
The reaction of halogens in the presence of sunlight is an example of
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2017
Calculate the amount in moles of silver deposited when 9650C of electricty is passed through a solution of silver salt [= 96500 Cmol-1]
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2017
Tin is unaffected by air at ordinary temperature due to its
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2017
C3H5 - COH3 =CH2The IUPAC nomenclature of the structure above is
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2017
Calculate the mass of copper deposited when a current of 0.5 ampere was passed through a solution of copper(II) chloride for 45 minutes in an electrolytic cell. [Cu = 64, F = 96500Cmol-1]
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2017
In the diagram above, Y is
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2017
In the diagram above. X is
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2017
CH2S(g) + O2(g) → 2Cn + SO2(g)What is the change in the oxidation number of copper in the reaction?
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2017
An oxide XO2 has a vapour density of 32. What is the atomic mass of X?
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2017
According to Charle's law, the volume of a gas becomes zero at
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2017
The carbon atoms on ethane are
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2017
The densities of two gases, X and Y are 0.5gdm-3 and 2.0gdm-3 respectively. What is the rate of diffusion of X relative to Y?
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2017
The reddish–brown rust on ion roofing sheets consists of
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2017
Calculate the amount in moles of a gas which occupies 10.5 dm3 at 6 atm and 30oC [R = 082 atm dm3 K-1 mol-1]
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