STPM Chemistry Questions
Quiz
•
Chemistry
•
12th Grade
•
Hard
VALARMATHY Moe
Used 5+ times
FREE Resource
6 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Monoxides and dioxides of Group 14 elements in the Periodic Table show different acid-base properties. Which is an acidic oxide?
GeO
PbO
SiO2
SnO2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which ionic compound is stable due to the inert pair effect?
GeO
PbO2
PbCl2
GeCl4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which oxide of Group 14 would bleach the colour of a damp litmus paper when reacting with hot concentrated hydrochloric acid?
CO2
PbO
CO
PbO2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which statement is true of the oxides of Group 14 elements in the Periodic table on descending the group?
The thermal stability of the dioxides of the elements increases.
The stability of the +2 oxidation state of the elements decreases.
The ionic properties of the monoxides of the elements increase.
The acid-base properties of the dioxides of the elements change from acidic to basic.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which is a common property for germanium and lead compounds?
Stability of +2 oxidation state of both compounds is due to the inert pair effect.
Tetrachlorides of both compounds are thermally stable.
Dioxides of both compounds are amphoteric.
Monoxides of both compounds are basic.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A thermally stable liquid, MCl4, reacts with water to form a solution of low pH value. Which statement about M or its oxides is true?
MO is an acidic oxide.
MO exists as simple molecules.
MO is a reducing agent.
M is a good electrical conductor
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