Inorganic Chemistry: p-Block Elements - SS3 Chemistry Past Questions and Answers - page 1
Which element in Group 15 has the highest electronegativity?
Nitrogen (N)
Phosphorus (P)
Arsenic (As)
Antimony (Sb)
Which Group 15 element is commonly used in fertilisers due to its essential role in plant growth?
Nitrogen (N)
Phosphorus (P)
Arsenic (As)
Antimony (Sb)
Bismuth (Bi)
Among the Group 15 elements, which one exists in multiple allotropes, including white, red, and black forms?
Nitrogen (N)
Phosphorus (P)
Arsenic (As)
Antimony (Sb)
Bismuth (Bi)
Which Group 15 element is commonly used in the production of semiconductors and electronic devices?
Nitrogen (N)
Phosphorus (P)
Arsenic (As)
Antimony (Sb)
Bismuth (Bi)
The most common oxidation state exhibited by Group 15 elements is:
+1
+2
+3
+4
+5
Which element in Group 16 is a non-metal, essential for respiration in living organisms, and forms diatomic molecules?
Oxygen (O)
Sulphur (S)
Selenium (Se)
Tellurium (Te)
Polonium (Po)
This Group 16 element is commonly found in the form of hydrogen sulphide (H2S) gas and is responsible for the characteristic smell of rotten eggs.
Oxygen (O)
Sulphur (S)
Selenium (Se)
Tellurium (Te)
Polonium (Po)
Which Group 16 element is a semiconductor, with properties that are intermediate between metals and nonmetals?
Oxygen (O)
Sulphur (S)
Selenium (Se)
Tellurium (Te)
Polonium (Po)
This Group 16 element is used in photocopiers and as a red pigment in glass and ceramics.
Oxygen (O)
Sulphur (S)
Selenium (Se)
Tellurium (Te)
Polonium (Po)
The oxidation state most commonly exhibited by Group 16 elements is:
-1
0
+1
+2
-2