Chemistry JAMB Past Questions And Answers PDF, Chemistry JAMB Past Questions And Answers
by Ushapriyanga | Updated Feb 17, 2023
Chemistry JAMB Past Questions And Answers
It is common for JAMB to include Chemistry as a mandatory subject, especially for students in the Science department. JAMB frequently presents Chemistry questions in different formats, and studying previous years' questions can help you familiarize yourself with these recurring questions and more. Based on the CURRENT JAMB CHEMISTRY SYLLABUS, your Chemistry exam this year will comprise 40 questions.
JAMB allots only two hours for all four subjects, leaving you with less than 30 minutes to complete the 40 Chemistry questions. To increase your chances of performing well in Chemistry and overall on the JAMB exam this year, it is advisable to practice with JAMB's previous Chemistry questions and corresponding answers.
Chemistry JAMB Past Questions And Answers PDF
Students who are preparing for the JAMB exam should prepare well for the exam and the JAMB Chemistry Questions and Answers 2023 will enable them to give their best for the exams. Given below are the major Chemistry JAMB Past Questions And Answers. We curated a few practice/ sample Chemistry JAMB Past Questions And Answers that you can refer.
Chemistry JAMB Past Questions And Answers
1. Which of the following statements is NOT correct?
A. The average kinetic energy of a gas is directly proportional to its temperature
B. At constant tempearture, the volume of a gas increases as the pressure increases
C. The pressure of a gas is inversely proportional to the density
D. The temperature of a gas is directly proportional to its volume
ANSWER: B (At constant tempearture, the volume of a gas increases as the pressure increases)
2. Zinc Oxide is a?
A. Basic Oxide
B. Acidic Oxide
C. Amphoteric Oxide
D. Neutral Oxide
E. Reactive Oxide
ANSWER: C (Amphoteric Oxide)
3. When sodium chloride and metallic sodium are each dissolved in water
A. both processes are exothermic
B. both processes are endothermic
C. the dissolution of metallic sodium is endothermic
D. the dissolution of metallic sodium is exothermic
E. the dissolution of sodium chloride is explosive
ANSWER: D (When sodium chloride and metallic sodium are each dissolved in water)
4. The periodic classification of elements is an arrangement of the elements in order of their
A. Atomic Weights
B. Isotopic Weights
C. Molecular Weights
D. Atomic Numbers
E. Atomic Masses
ANSWER: D (Atomic Numbers)
5. In the reaction between sodium hydroxide and sulphuric acid solutions, what volume of 0.5 molar sodium hydroxide would exactly neutralise 10cm3 of 1.25 molar sulphuric acid?
A. 5cm3
B. 10cm3
C. 20cm3
D. 25cm3
E. 50cm3
ANSWER: E (50cm3)
6. What is the shape of a molecule of CCl4?
A. Pyramid
B. tetrahedral
C. Trigonal planar
D. linear
ANSWER: B (Tetrahedral)
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?
A. 3:1
B. 1:3
C. 2:5
D. 5:2
ANSWER: A (3:1)
6g of Mg was to 100cm3 of 1 moldm3 H2 SO4 . What mass of Mg remained undissolved? (Mg = 24)
A. 0.24g
B. 2.4g
C. 3.6g
D. 0.36g
ANSWER: C (3.6)
Which of the following will act as both oxidizing agents and reducing agents?
A. H2 S
B. NH3
C. Cl2
D. SO2
ANSWER: D ( SO2 )
A metal which can be used as sacrificial anode for preventing corrosion of length of iron pipe is
A. copper
B. magnesium
C. silver
D. lead
Which of the following will precipitate in dil. HCl
A. ZnS
B. Na2 S
C. Fe S
D. CuS
ANSWER: D ( CuS )
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 )
Chemistry JAMB Past Questions And Answers PDF - FAQs
The Joint Admissions and Matriculations Board (JAMB) is a Nigerian tertiary admissions examination board.
The board administers the UTME, or Unified Tertiary Matriculation Examination, to prospective undergraduate students at Nigerian universities.
The board is also in charge of administering similar exams to people applying to Nigerian public and private monotechnics, polytechnics, and colleges of education.
All of these candidates must hold the West African School Certificate, now known as the West African Examinations Council, WAEC, or its equivalent, the National Examination Council (Nigeria), NECO.