Jamb Chemistry Past Questions and Answers

Question 2131:

• JAMB 2020

An example of a polysaccharide is?

A. Dextrose
B. Mannose
C. Glucose
D. Starch

Question 2132:

• JAMB 2020

8g of CH\(_4\) occupies 11.2 at S.T.P. What volume would 22g of CH\(_3\)CH\(_2\)CH\(_3\) occupy under the same condition?

A. 3.7dm\(^3\)
B. 11.2dm\(^3\)
C. 22.4dm\(^3\)
D. 33dm\(^3\)

Question 2133:

• JAMB 2020

The best treatment for a student who accidentally poured conc tetraoxosulphate(vi) on his skin in the laboratory is to wash his skin with?

A. With cool running water
B. Sodium hydroxide solution
C. Iodine solution
D. Sodium trioxonitrate(v) solution

Question 2134:

• JAMB 2020

Which of the gas laws does this graph illustrate?

A. Boyle
B. Charles
C. Gay-Lussac
D. Graham

Question 2135:

• JAMB 2020

What are the possible oxidation numbers of an element if its atomic number is 17?

A. -1 and 7
B. -1 and 6
C. -3 and 5
D. -2 and 6