Search SchoolNGR

Chemistry Past Questions and Answers

Jamb Chemistry Questions

Question 1:

An acid is said to be weak if?

SchoolNGR Classroom

A Its ions are so completely dissociated that they easily drift apart
B The acid is not corrosive
C The acid has low specific gravity
D Its ions move very slowly when in solution
E Its ions are incompletely dissociated

View Answer & Explanation

Question 2:

An acid is said to be weak if?

SchoolNGR Classroom

A Its ions are so completely dissociated that they easily drift apart
B The acid is not corrosive
C The acid has low specific gravity
D Its ions move very slowly when in solution
E Its ions are incompletely dissociated

View Answer & Explanation

Question 3:

Which of the following statements is correct during the electrolysis of a caustic soda solution using platinum electrodes?

SchoolNGR Classroom

A Oxygen gas is given off at the cathode
B Hydrogen gas is given of at the anode
C Sodium metals is deposited at the anode
D Sodium metal is deposited at the cathode
E AAlkalinity at the cathode increases

View Answer & Explanation

Question 4:

An amphoteric oxide is an?

SchoolNGR Classroom

A Amorphous oxide of a metal
B Amorphous oxide of a non-mental
C Oxide that is insoluble in water
D Oxide that behaves both as a base as well as an acid
E Oxide that loses its oxygen on sublimation

View Answer & Explanation

Question 5:

Water is poured over a white solid and a colourless neutral gas is evolved which burns with a sooty flame. The white solid is?

SchoolNGR Classroom

A Calcium
B Calcium oxide
C Calcium carbide
D Sodium peroxide
E Sodium sulphate

View Answer & Explanation

Stay Updated

Follow us on:

Subjects