IGCSE Coordinated Chemistry Workout 6

Quiz
•
Chemistry
•
10th Grade
•
Medium
Dave Gould
Used 113+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The proton number of element X is 44. Its nucleon number is 145. How many neutrons are there in an atom of X?
44
101
145
189
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
An atom has 2 electrons in its outer shell. Which element could this atom be?
A
B
C
D
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which material is made from silicon(IV) oxide combined with metal oxides?
brass
glass
polythene
steel
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The apparatus shown is used to investigate the speed of reaction between hydrochloric acid and calcium carbonate.
The time to collect 50 cm3 of gas is measured. Using concentrated acid and lumps of calcium carbonate, the time is 150 s.
In a second experiment, the time is 90 s. Which change was made in the second experiment?
larger lumps of calcium carbonate
less concentrated acid
lower temperature
powdered calcium carbonate
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The table shows physical properties of some substances. Which substance is metal?
A
B
C
D
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A petrochemical molecule undergoes the chemical change shown. What is the chemical change?
cracking
polymerisation
fractional distillation
reduction
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A reagent in solution is added to a solid sample of a fertiliser. The mixture is warmed and the gas given off changes the colour of damp litmus paper.
The test shows that the fertiliser contains ammonium ions.
What is the reagent and what is the original colour of the litmus paper used in the test?
A
B
C
D
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