STPM Chemistry Questions

STPM Chemistry Questions

12th Grade

6 Qs

quiz-placeholder

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STPM Chemistry Questions

STPM Chemistry Questions

Assessment

Quiz

Chemistry

12th Grade

Hard

Created by

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