JAMB CHEMISTRY PAST QUESTIONS

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JAMB CHEMISTRY PAST QUESTIONS

Chemistry

JAMB CHEMISTRY PAST QUESTIONS

Attempt all 60 questions picked from our pool past questions. You have 1 hour to answer all 60 questions.

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1 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

The principle of column chromatography is based on th ability of the constituents to

2 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

The arrangement of particles in crystal lattices can be studied using

3 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

All these are electromagnetic waves except

4 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

What technique is suitable for separating a binary solution of potassium chloride and potassium trioxochlorate (V)?

5 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

The colour of litmus in an alkaline medium is

6 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

The radioisotope used in industrial radiography for the rapid checking of faults in welds and casting is

7 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

Hydrogen can be displaced from a lot alkaline solution by

8 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

2-methylprop-1-ene is an isomer of

9 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

Which of the following statements is correct about the periodic table?

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Category: JAMB CHEMISTRY PAST QUESTIONS

The elements that belong to the third period of periodic table are

11 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

When large hydrocarbon molecules are heated at high temperature in the presence of a catalyst to give smaller molecules, the process is known as

12 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

When ΔH is negative, a reaction is said to be

13 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

The salt formed from a weak acid and a strong base hydrolyzes in water to form

14 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

The Sulphide which is insoluble in dilute hydrochloric acid is

15 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

P1V1 = P2V2 supports ?

16 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

An isomer of C5H12 is

17 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

An elements used in production of matches is

18 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

The gas that is most useful in protecting humans against solar marathon is

19 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

Which of the following statements is true about 2-methylpropane and butane

20 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

When salt loses its water of crystallization to the atmosphere on exposure, the process is said to be

21 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

Which of the following represents the kind of bonding present in ammonium chloride?

22 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

Burning magnesium ribbon in air removes which of the following

(i) oxygen (ii) nitrogen (iii) argon and (iv) carbon(iv)oxide?

23 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

Tin is unaffected by air at ordinary temperature due to its

24 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

A small quantity of solid ammonium chloride (NH4Cl) texted gently in a test tube, the solid gradually disappear produce two gases. Later, a white cloudy deposit was absence on the cooler part of the test tube. The ammonium chloride is to have undergo

25 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

Which of the following alkaline metals react more quickly spontaneously with water?

26 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

The ionic radii of metals are usually

27 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

Which of the following does not support the fact that air is a mixture?

28 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

The enzyme used in the hydrolysis of starch to dextrin and maltose is

29 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

The mass of silver deposited when a current of 10A is passed through a solution of silver salt for 4830s is – (Ag = 108 F = 96500(mol-1)

30 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

Calculate the amount in moles of silver deposited when 9650C of electricty is passed through a solution of silver salt [= 96500 Cmol-1]

31 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

A mixture is different from a compound because

32 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

Ammonium chloride can be separated from its mixture with common salt by

33 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

Which of the following metals is the most essential in the regulation of blood volume, blood pressure and osmotic equilibrium?

34 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

A liquid that will dissolve fat is

35 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

The elements in the periodic table are listed in order of increasing

36 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

Which of the compounds is composed of Al, Si, O and H?

37 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

The weakest attractive force that can be observed between two molecules is

38 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

Which of the activities is commonly used as a nuclear fuel

39 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

200 cm3 of a gas at 25oC exerts a pressure of 700 mmHg. Calculate its pressure if its volume increase 350 cm3 at 75oC.

40 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

Which of the following metals cannot replace hydrogen from water or steam?

41 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

A substance that is used as a ripening agent for fruits is

42 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

The tincture of iodine means iodine dissolved in

43 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

An oxidation state of or in K2CrO7

44 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

Which of the following statements is correct about the periodic table?Which of the following statements is correct about the periodic table?

45 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

The oxidation number of iodine in KIO3 is

46 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

The shape of the S-orbital is

47 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

The ability of carbon to form long chains is referred to as

48 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

A gas X diffuses twice as fast as gas Y. if the relative molecular mass of X is 32, calculate the relative molecular mass of Y.

49 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

In the production of soap, concentrated sodium chloride solution is added to

50 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

Diamond cannot be used

51 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

Which of the following is the best starting material for the preparation of oxygen? Heating of trioxonitrate (v) with

52 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

Which of the following statements does not show Rutherford's account of Nuclear Theory? An atom contains a region

53 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

In the industrial production of H2 is removed by (solution)

54 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

In the discovery of protein, the instrument used is

55 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

The filter in the cigarette reduce the nicotine construct by

56 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

The shape of ammonia molecules is

57 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

The number of isomers formed by C6H14 is

58 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

The reaction of halogens in the presence of sunlight is an example of

59 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

A suitable reagent for distinguish between ethanoic and ethanol is

60 / 60

Category: JAMB CHEMISTRY PAST QUESTIONS

Which of the following types of alkanols undergo oxidation to produce alkanoic acids.

I. Primary alkanols
II. Secondary alkanols
III. Tertiary alkanols

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