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NOTICE  Possible jamb Maths and chemistry questions that may come out and some topics

#1


You can't fail Maths. Jamb 2017 if you practice these questions well and also work other examples under the topic,I advice my candidates to study hard*

1. Integrate 2x²+2x/x with respect to x

A. 2x³/3 - 2x + k
B. x3 + 2x + k
C. 2x³/3 + 2x + k
D. x3 - 2x + k

2. If the mean of 4, y, 8 and 10 is 7. Find Y?

A. 6
B. 10
C. 7
D. 9

3. In a school of 150 students, 80 offer French while 60 offer Arabic and 20 offer neither. How many students offer both subjects?

A.45
B.10
C.35
D.30

4. If the 2nd term of a G.P is 8/9 and the 6th term is 4½. Find the common ratio.

A. 2
B. ³/²
C. ⅔
D. 3

5. The sum of the interior angles of a polygon is a given as 1080o. Find the number of the sides of the polygon.

A. 5
B. 7
C. 6
D. 8

6. Evaluate ∫(cos4x + sin3x)dx

A. sin4x - cos3x + k
B. sin4x + cos3x + k
C. ¼sin4x - ⅓cos3x + k
D. ¼sin4x + ⅓cos3x + k


7. If x(base10) = 23(base 5). Find x

A. 12
B. 14
C. 15
D. 13

8. Calculate the range of 20, -6, 25, 30, 21, 28, 32, 33, 34, 5, 3, 2, and 1.

A. 32
B. 36
C. 33
D. 40

9. Factorize k² - 2kp + p².

A. (k +p)2
B. (k - p)2
C. k2 + p2
D. k2 - p2

10. Calculate the perimeter of a sector of a circle of radius 12cm and angle 60°.

A. (12 + 4π)cm
B. (24 + 4π)cm
C. (12 + 6π)cm
D. (24 + 6π)cm

11. Marks| 2 | 3 | 4
___________________
Frequency| 4 | 4 | y

The table above shows the frequency distribution of marks obtained by a group of students. If the total mark is 48, find the value of y.

A. 5
B. 8
C. 6
D. 7

12. Given U = {x:x is a positive integer less than 15} and P = {x:x is even number from 1 to 14}. Find the compliment

A. {1, 3, 5, 7, 9, 11, 13, 15}
B. {2, 3, 5, 7, 9, 11, 13}
C. {1, 3, 5, 7, 9, 11, 13}
D. {2, 3, 5, 7, 11, 15}

13. A number of pencils were shared out among Bisi, Sola and Tunde in the ratio of 2:3:5 respectively. If Bisi got 5, how many were shared out?

A. 15
B. 25
C. 30
D. 50

14. Calculate the perimeter of a sector of a circle of radius 9cm and angle 36°.

A. 18cm
B. (18 + 9π/5)cm
C. (9 + 9π/5)cm
D. 9π/5cm

15. Scores 3 6 5 2
Frequency 2 3 4 6

From the table above, find the median

A. 3
B. 5
C. 4
D. 6

16. An arc subtends an angle of 30° at the centre of a circle radius 12cm. Calculate the length of the arc.

A. 6πcm
B. 2πcm
C. 3πcm
D. 9πcm

17. The mean of 2-t, 4+t 3-2t, 2+t and t-1 is

A. 2
B. t
C. -2
D. -t

18. The nth term of the sequence 3, 9, 27, 81.....is

A. 3 x 3n-2
B. 3 x 3n-1
C. 3 x 3n+2
D. 3 x 3n+1

19. If y = 2x³ + 6x² + 6x + 1, Find dy/dx


A. 6x² + 12x + 1
B. 6x² + 6x + 1
C. 6x² + 6x + 6
D. 6x² + 12x + 6

20. Evaluate ∫(sinx - 5x²)dx

A. -cosx - 10x + k
B. cosx - 5x³/3 + k
C. -cosx - 5x³/3 + k
D. cosx - 10x + k

21. Solve for x and y respectively 
3x - 5y = 9 
6x - 4y = 12

A. ¾, 1
B. ⁴/3, 1
C. ¾, -1
D. ⁴/3, -1

22. OGIVE is constructed using

A. Third quartile range
B. Semi-quartile range
C. Cummulative frequency
table
D. Inter-quartile table

23. Rationalize 6√−4 / √6√+4√

A. 5 + 2√6
B. 5 - 4√6
C. 5 + 4√6
D. 5 - 2√6

24. If three admin. of Prep. JAMB CBT 2017/18 agreed to share their salary arrears in the ration of their ages, which are 18 years, 20 years, 22 years respectively. If the sum of the money collected is N120,000.00K, How much does the second staff received?

A. N36,000
B. N44,000
C. N40,000
D. N15,000

25. X and Y are two sets such that n(X) = 15, n(Y) = 12 and n{∩ Y} = 7. Find ∩{X ∪ Y}

A. 21
B. 225
C. 15
D. 20

26. Find the total surface area of a cylinder of base radius 5cm and length 7cm ( π = 3.14)

A. 17.8cm²
B. 15.8cm²
C. 75.4cm²
D. 54.7cm²

27. A man with an annual salary of N2000, has allowances of N600. If Income Tax is 5%. How much tax does he pay each year?

A. 15
B. 20
C. 30
D. 25

28. Find the equation of a line which is form origin and passes through the point (−3,
−4)

A. y = 3x/4
B. y = 4x/3
C. y = 2x/3
D. y = x/2

29. Given that A = {1, 5, 7}

B = {3, 9, 12, 15}

C = {2, 4, 6, 8}

Find (A ∪ B) ∪ C

A. {1, 2, 3, 4, 5, 6, 7, 8, 9,12,
15}
B. {1, 2, 3, 5, 6, 8, 12, 15}
C. {2, 4, 5, 9, 12, 15}
D. {1, 5, 6, 7, 8, 9, 12, 15}

30. The extension of a stretched string is directly proportional to its tension. If the extension produced by a tension of 8 Newton’s is 2cm, find the extension produced by a tension of 12 newton’s.

A. 2
B. 1
C. 0
D. 3

31. If A = (−3,5) and B = (4,−1) find the co-ordinate of the mid point

A. 2, ½
B. ½ , 2
C. 1, ½
D. 0, 2

32. The volume of a cylinder whose height is 4cm and whose radius 5cm is equal to (π = 3.14)

A. 3.13cm²
B. 145cm²
C. 314cm²
D. 214cm²

33. The probability of an event A is 1/5. The probability of B is 1/3 . The probability both A and B is 1/15. What is the probability of either event A or B or both

A. 2/15
B. ¾
C. 7/15
D. 1/15

34. Find the distance between the points (-2,-3) and (-2,4)

A. 3m
B. 2.4m
C. 3.2m
D. 5.1m

35. Find the area of the curved surface of a cone whose base radius is 3cm and whose height is 4cm (π = 3.14)

A. 17.1cm²
B. 27.2cm²
C. 47.1cm²
D. 37.3cm²

36. *Practice Circle Geometry*

37. *Venn Diagram*

38. *Pie,bar chart*

39. *Logarithm and surds*

40. *Changing to subject of the formula*

41. *Simple interest/compound interest*
S.I= PRT/100
C.I= (A) = P ( 1 + R/100)^n

42. *Probability*

43. *Polynomials*

C.S.A of a cone = πrlL²= h² +


Volume of a cylinder = πr²h

Length of arc = tita/360 x 2πr

Perimeter of a sector = Length of arc + 2r

Area of segment = tita/360 x πr² + r²/2 Sintita

44. *Polygon*
Interior angles n represents number of sides (n-2)180  or (2n-4)90

Exterior angle= 360/n

4- quadrilateral
5- Pentagon
6- hexagon
7- heptagon
8- octagon
9- nonagon
10- decagon

45. *Range, Mean deviation, variance, standard deviation, mean, median, mode.




CHEMISTRY QUESTIONS BY JAMB STAFF


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


Question 8-10 are based on the following
An unknown organic compound X has a relative
molecular mass of 180. It is a colourless crystalline solid,
readily soluble in water. X contains the element C, H,
and O in the atomic ratio 1:2:1. The compound has a
sweet taste and melts on heating. In the presence of
yeast and in the absence of air X is converted to
compound Y in the absence of air, X is converted to
compound Y and colourless gas.
Compound Y reacts with sodium metal to produce a
gas Z which gives a ‘pop’ sound with a glowing splint.
Y also reacts with ethanoic acid to give a sweetsmelling
compound W.

8. Compound W is
A. a soap 
B. an oil
C. an alkane 
D. an ester
E. sucrose


9. Themolecular formula of X is
A. C12H22O11 
B. C6H12O6
C. C3H6O3 
D. C7H14O7
E. C4H3O4


10. reaction of X with yeast forms the basic of the
A. plastic industry
B. textile industry
C. brewing industry
D. soap industry
E. dyeing industry.


11. 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.


12. 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


13.
In the above experiment (fig1) the litmus paper will
initially
A. be bleached 
B. turn green
C. turn red 
D. turn blue
E. turn black


14. The colour imparted to a flame by calcium ion
is
A. green 
B. blue
C. brick-red 
D. yellow
E. lilac


15. In the reaction M + N P; H = + Q kJ.
Which of the following would increase the
concentration of the product?
A. Decreasing the concentration of N
B. Increasing the concentration of P
C. Adding a suitable catalyst.
D. Decreasing the temperature


16. In which of the following processes is iron being
oxidized?
1. Fe + H2
SO4
 H2 + FeSO4
2. FeSO4
+ H2
S FeS + H2
SO4
3 FeCl + CI2
 2FeCL3
4 FeCl3
+ SnCI2
 2FeCL2 + SnCI4
A. 1 only 
B. 2 only
C. 3 only 
D. 1 and 3
E. 2 and 4.


17.
Fig.2
In the above experiment (fig.2), a current was passed
for 10 minutes and 0.63 g of copper was found to be
deposited on the cathode of CuSO4
cells. The weight
of AgNO3 cell during the same period would be [Cu =
63,Ag –108]
A. 0.54 g 
B. 1.08 g
C. 1.62 g 
D. 2.16 g
E. 3.24 g


18. In the reaction Fe + Cu2+ Fe2+ + Cu, iron displaces
copper ions to form copper. Thisis due to the fact that
A. iron isin themetallic formwhile dthe copper is
in the ionic form
B. the atomic weight of copper is greater than
that of ion
C. copper metal has more electronsthan ion metal
D. iron is an inert metal
E. iron is higher in the electrochemicalseriesthan
copper.


19. C2H5 C =CH2
 CH3
The correct name of the compound with the above
structural formula is
A. 2-methylbut-1-ene
B. 2-methylbut-2-ene
C. 2-methylbut-1-ene
D. 2-ethyprop-1-ene
E. 2-ethylprop-2-ene


20. How many isomeric forms are there for the molecular
formula C3H6Br2
?
A. 1 
B. 2
C. 3 
D. 4
E. 5


21. A piece of burning sulphur will continue to burn in a
gas jar of oxygen to give misty fumes which readily
dissolve in water. The resulting liquid is
A. sulphur (1V) trioxide
B. Tetraoxosulphate acid (V1)
C. Trioxosulphate (1V) acid
D. Dioxosulphate (11) acid
E. Hydrogen sulphide


22. Sodium decahydrate (Na2
SO4
10H2O) an exposure to air
loses all its water of crystallization. The process of loss
is known as
A. Efflorescence 
B. Hygroscopy
C. Deliquescence 
D. Effervescence
E. Dehydration


23. Which of the following happens during the electrolysis
of molten sodium chloride?
A. Sodium ion loses an electron
B. Chlorine atom gains an electron
C. Chloride ion gains an electron
D. Sodium ion is oxidized
E. Chloride ion is oxidized.


24. Crude petroleum pollutant usuallyseen on some Nigeria
creeks and waterways can be dispersed or removed by.
A. heating the affected parts order to boil off the
petroleum
B. mechanicallystirring to dissolve the petroleum
in water
C. pouring organic solvents to dissolve the
petroleum
D. spraying the water with detergents
E. cooling to freeze out the petroleum.


25. An element is electronegative if
A. it has a tendency to exist in the gaseous form
B. its ions dissolve readily in water
C. it has a tendency to lose electrons
D. it has a tendency to gain electrons
E. it readily forms covalent bonds


26. Solution X,Y, and Z have pH values 3.0, 5.0 and 9.0
respectively. Which of the following statements is
correct?
A. All the solution are acidic
B. All solution are basic
C. Y and Z are more acidic than water
D. Y is more acidic than X.
E. Z is the least acidic


27. In the reactions
(1) H2 (g) + 1
 2 O2
(g) H 2O(1); H=-2.86kJ
(11) C(s) + O2
(g) CO2
(g); H= -406 kJ
the equations imply that
A. more heat is absorbed heat is evolved in (1)
B. more heat is absorbed in (11)
C. less heat is evolved in (1)
D. reaction (11) proceeds faster than (1)
E. reaction (1) proceeds faster than (11)


28. Which of thesemetals, Mg, Fe, Pb, andCu will dissolve
in dilute HCI?
A. All the metals
B. Mgm Fe, and Cu
C. Mg, Fem and Pb
D. Mg and Fe only
E. Mg only


29. Stainless steel is an alloy of
A. Carbon, iron and lead
B. Carbon, ion and chromium
C. Carbon iron and copper
D. Carbon, iron and silver
E. Carbon and iron only


30. What volume of 0.50 MH2
SO4 will exactly neutralize
20cm3 of 0.1 M NaOH solution?
A. 2.0 cm3 
B. 5.0 cm3
C. 6.8 cm3 
D. 8.3 cm3
E. 10.4cm3


31. Which of the following pair of gases will NOT react
further with oxygen at a temperature between 30oCand
400oC?
A. SO2 and NH3 
B. CO2 and H2
C. NO2 and SO3 
D. SO3 and NO
E. CO and H2


32. Some metals are extracted from their ores after some
preliminary treatments by electrolysis (L) some by
thermal reaction(T) and some bya combination of both
processes(TL). Which set-up in the following for the
extraction of iron copper and aluminum is correct?
A. Iron (L), copper (L) m aluminum(T)
B. Iron (T), copper (L), aluminum (T)
C. Ion (TL), copper (TL), aluminium(TL)
D. Iron (L), copper (T), aluminium (T).
E. Ion (T), copper (L), aluminium (TL).


33. In the preparation of some pure crystals of Cu (NO3
)
2
starting with CuO, a student gave the following
statements assteps he employed. Which of these shows
a flaw in hisreport?
A. Some CuO was reacted with excess dilute
H2
SO4
B. The solution was concentrated
C. When the concentrate was cooled, crystals
formed were removed by filtration.
D. The crystals were washed with very cold water
E. The crystals were then allowed to dry.


34. Which of the following seperation processes is most
likely to yield high quality ethanol (>95%) from palm
wine?
A. Fractional disllation without a dehydrant
B. Simple distillation without a dehydrant
C. Fractional distillation with a dehydrant
D. Column chromatography
E. Evaporation


35. 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.


36. 2.5 g of a hydrated barium salt gave on heating, 2.13 g
ofthe anhydrous salt. Given that the relativemolecular
mass of the anhydrous salt is 208, the number of
molecules of water of crystallization of the barium salt
is
A. 10 
B. 7
C. 5 
D. 2
E. 1


37. 3.06 g of a sample of potassium trioxochlorate
(v) (KCIO3
) was required to make a saturated solution
with 10cm3 ofwater at 25oC. The solubilityof the salt at
25oCis[K=39,CI =35.5,O=16]
A. 5.0 moles dm3 
B. 3.0 moles dm3
C. 2,5 moles dm3 
D. 1.0 moles dm3
E. 0.5 moles dm3


38. The cracking processis veryimportant in the petroleum
industry because it
A. gives purer products
B. Yields more lubricants
C. Yields more engine fuels
D. Yields more asphalt
E. Yieldmore candlewax


39. A gas that can behave as reducing agent towards
chlorine and as an oxidizing agent toward hydrogen
sulphide is
A. O2 
B. NO
C. SO2 
D. NH3
E. CO2


40. Which if the following solution will give a white
precipitate with barium chloride solution and a green
flame test?
A. Na2SO4 
B. CuSO4
C. CaSO4 
D. CaCI2
E. (NH4
)
2 SO4


41. The mass of an atom is determined by
A. itsionization potential
B. its electrochemical potential
C. the number of protons
D. the number of neutrons and protons
E. the number of neutrons and electrons


42. Which of the following is neutralization
reaction?
A. Addition of chloride solution
B. Addition of trioxonirate (V) acid (nitric acid)
to distilled water.
C. Addition of trioxonirate (V) acid (nitric acid)
to tetraoxosulphate (V1) acid (sulphuric acid)
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