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chemistry Practice tests Neco, Jamb, Wascce,SSce, Sat, Gre, Toefel, Gmat Online

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When 50cm3 of a saturated solution of sugar of molar mass 342 g at 40°C was evaporated to dryness, 34.2g of dry solid was obtained. The solubility of sugar at 40°C is




3.5 mol dm-3
B


7.0 mol dm-3
C


10.0 mol dm-3
D

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Which of the following results in the fall of acid rain?




Particulate matter
B


Oxides of Sulphur
C


 Gaseous hydrocarbon
D

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Water has the ability to dissolve almost all substances because its molecule has a structure with




one positive end and
B


two negative ends
C


two positive ends
D

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