Metals and their compounds - Jamb Chemistry Past Questions and Answers

Question 121:

• JAMB 2016

Diamond cannot be used

A. In making bicycle chains
B. As abrasives
C. In cutting glass and metals
D. As dies for drawing wires

Question 122:

• JAMB 2016

In the extraction of iron, the waste gas from the furnace is a mixture of

A. PH₃ CO and CO₂
B. CO and C
C. N₂ , CO and CO₂
D. PH₃ and CO

Question 123:

• JAMB 2017

The reddish—brown rust on ion roofing sheets consists of

A. Fe³ + (H₂O)₆
B. FeO.H₂O
C. Fe₂O₃.3H₂O
D. Fe₃O₄.2H2₂O

Question 124:

• JAMB 2017

A particle that contains 9 protons, 10 neutrons and 10 electrons is

A. Positive ion
B. Neutral atom of a metal
C. Neutral atom of a non-metal
D. Negative ion

Question 125:

• JAMB 2017

Ethene is prepared industrially by

A. Reforming
B. Polymerization
C. Distillation
D. Cracking