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JAMB Chemistry Questions and Answers 2022
All the JAMB 2022 Chemistry questions and answers for different days will will posted in this page. The UTME Exam Starting Date Friday, 6th May 2022 and will be Ending on Monday, 16th May 2022.
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1. What is the shape of a molecule of CCl4?
C. Trigonal planar
ANSWER: B (Tetrahedral)
2. A sample of gas with an initial volume of 2.5 dm3 is heated and then allowed to expand to 7.5 dm3 at constant at pressure. What is the ratio of the final temperature of the initial absolute temperature?
ANSWER: A (3:1)
3. 6g of Mg was to 100cm3 of 1 moldm3 H2 SO4 . What mass of Mg remained undissolved? (Mg = 24)
ANSWER: C (3.6)
4. Which of the following will act as both oxidizing agents and reducing agents?
A. H2 S
ANSWER: D ( SO2 )
JAMB Chemistry Questions and Answers 2022
5. A metal which can be used as sacrificial anode for preventing corrosion of length of iron pipe is
ANSWER: C (Silver)
6. Which of the following increases as boiling water changes to steam?
A. Temperature of the system
B. degree of disorder of the system
C. number of molecule
D. Activation energy
ANSWER: B (Degree of disorder of the system)
7. Which of the following is stable to heat
B. ( NH4 )2 SO4
C. Ag NH3
D. K2 CO3
ANSWER: D ( K2 CO3 )
8. Which of the following will precipitate in dil. HCl
B. Na2 S
C. Fe S
JAMB Chemistry Questions 2022 and Answers Continues
ANSWER: D ( CuS )
9. Which of the following does NOT contain aluminum as a component?
A. Over-head cables
C. Container for caustic soda
D. Container for trioxonitrate (v) acid
ANSWER: C (Container for caustic soda)
10. The removal of rust from iron by treatment with tetraoxosulphate (vi) acid is based on the
A. Hydrolysis of the iron
B. Reaction of acid with base
C. Oxidation of the rust
D. Dehydration of the iron
ANSWER: D ( Dehydration of the iron )
11. Which of the following constitutes a mixture? I. Petroleum II. Rubber latex III. Vulcanizer’s solution IV. Carbon (iv) sulphide
A. I, II and III
B. I, II and IV
C. I and II only
D. I and IV
ANSWER: A ( I, II and III)
JAMB Chemistry 2022 Questions and Answers
12. 30 cm3 of oxygen at 10 atmosphere pressure is placed in a 20 dm3 container. Calculate the new pressure if the temperature is kept constant.
A. 6.7 atm
B. 15.0 atm
C. 6.0 atm
D. 66.0 atm
ANSWER: A ( 15.0 atm)
13. A sample of gas exerts a pressure of 8.2 atm when confined in a 2.93 dm3 container at 20c. The number of moles of gas in the sample is
A. 1. 00
ANSWER: A ( 1.00)
14. A quantity of air passed through a weighted amount of alkaline pyrogallol. An increase in the weight of the pyrogallol would result from the absorption of
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