JAMB COMPUTER BASED TEST

Chemistry ⇒ Chemistry JAMB UTME Past QuestionsViews: 6275

Chemistry JAMB UTME Past Questions

JAMB UTME CHEMISTRY Past Question [PDF]

1. X is crystalline salt ofsodium. Solution of X in water
turnslitmusred produces a gas which turnslime water
milky when added to sodium carbonate. With barium
chloride solution, X gives a white precipitate which is
insoluble in dilute hydrochloric acid. X is
A. Na2
,CO3 B. NaHCO3
C NaHSO4 D Na2
SO3
E. Na2
SO4
2. The alkanol obtained from the production of soap is
A. ethanol B. glycerol
C. methanol D. propanol
E. glycol
3. The flame used by welders in cotton metals is
A. butane gas flame
B. acetylene flame
C. kerosene flame
D. oxy-acetylene flame
E. oxygen flame
4. Consecutive members of an alkane homologousseries
differ by
A. CH B. CH2
C. CH3 D. CnHn
E. CnH2n+2
5. If an element has the lectronic configuration 1s2 2s2 2p6
3s2
3p2
, it is
A. ametal
B. an alkaline earth metal
C. an s-block element
D. a p-block element
E. a transition element
6. Some copper (11)sulphate pentahydrate (CuSO4
5H2O),
was heated at 120oC with the following results: Wt of
crucible= 10.00 g;Wt ofcrucible +CuSO4
5H2O=14.98g;
Wt of crucible + residue = 13.54g. How manymolecules
of water of crystallization were lost? [H=1, Cu =63.5,
O=16,S= 32]
A. 1 B. 2
C. 3 D. 4
E. 5
7. The three-dimensional shape of methane is
A. hexagonal B. tigonal
C. linear D. tertrahedral
E. cubical
8. A mixture of common salt, ammonium chloride and
barium sulphate can best be separated by
A. addition of water followed by filtration then
sublimation
B. addition of water followed by sublimation then
filtration
C. sublimation followed byaddition of water then
filtration
D. fractional distillation
E. fractional crystallization.
9. Which of the following relationships between the
pressure P, the volume V and the temperature T,
represents and ideal gas behaviors?
A. P&VT B. P&T/V
C. PT& V D. PV&VT
E. P & V/T
10. Increasing the pressure of a gas
A. lowers the average kinetic energy of the
molecules
B. decreases the density of the gas
C. decreases the temperature of the gas
D. increases the density of the gas
E. increases the volume of the gas


JAMB UTME CHEMISTRY Past Question [PDF]

Started by: Prodigy on Mar 24, 2017

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