Login
Remember
Register
EasyElimu Questions and Answers
Questions
Unanswered
Tags
Users
Ask a Question
Ask a Question
An ore is suspected to contain mainly sodium. Describe a method that can be used to confirm the presence of sodium in the ore.
0
votes
995
views
asked
Jul 5, 2021
in
Chemistry Form 4
by
anonymous
An ore is suspected to contain mainly sodium. Describe a method that can be used to confirm the presence of sodium in the ore.
metals
Please
log in
or
register
to answer this question.
1
Answer
0
votes
answered
Jul 5, 2021
by
anonymous
Crush the ore,add water and stir. Filter and dip a glass rod in the filtrate.Remove the glass rod and heat in a non-luminous flame .Yellow flame confirms presence of sodium.
Please
log in
or
register
to add a comment.
Related questions
0
votes
1
answer
The chief ore of aluminium is bauxite which mainly contains Al2O3.2H20. The ore is initially purified before aluminium is extracted electrolitically.
asked
Jul 7, 2021
in
Chemistry Form 4
by
anony mous
metals
alluminium
chief ore
0
votes
1
answer
The above is a simplified diagram of the Downs Cell used for the manufacture of sodium. Study it and answer the questions that follow.
asked
Jul 9, 2021
in
Chemistry Form 4
by
anony mous
metals
sodium
down cell
properties of sodium
0
votes
1
answer
Cracking can also be achieved using less amount of heat in the presence of a catalyst. Name one catalyst that is often used.
asked
Aug 17, 2021
in
Chemistry Form 3
by
anonymous
organic chemistry
0
votes
1
answer
In a certain factory, iron is extracted from the haematite ore using the blast furnace as shown in Figure 1. The other raw materials are coke, limestone and air. The melting and boiling points of iron are 1535°C and 3000 °C, respectively.
asked
Jun 21, 2021
in
Chemistry Form 3
by
anonymous
metals
iron
0
votes
1
answer
Excess dilute hydrochloric acid was added to an alloy of copper and zinc in a beaker.
asked
Jun 21, 2021
in
Chemistry Form 4
by
anony mous
metals
zinc
properties of metals
alloys
Welcome to EasyElimu Questions and Answers, where you can ask questions and receive answers from other members of the community.
Categories
All categories
Mathematics
(632)
English
(287)
Kiswahili
(559)
Chemistry
(663)
Chemistry Form 1
(225)
Chemistry Form 2
(177)
Chemistry Form 3
(183)
Chemistry Form 4
(77)
Physics
(604)
Biology
(659)
Geography
(537)
History
(568)
CRE
(365)
IRE
(53)
Agriculture
(519)
Business Studies
(379)
Computer Studies
(20)
Home Science
(60)
General Questions
(432)
6.4k
questions
9.6k
answers
6
comments
590
users
...