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CHEMISTRY OF THE ELEMENTS: Nitrogen
Chemistry Of The Elements: Sulphur
MATTER - PROPERTIES AND TRANSFORMATION: Acidic And Alkaline Solutions
MATTER - PROPERTIES AND TRANSFORMATION: Atomic Structure And The Periodic Table
MATTER - PROPERTIES AND TRANSFORMATION: Atoms
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry of Elements - Carbon
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry of Elements - Hydrogen
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry of Elements - Oxygen
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry of Elements - Phosphorus
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry of Elements - The Halogens
MATTER - PROPERTIES AND TRANSFORMATION: Structure And Bonding
5/70 MCQs for:
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry of Elements - Hydrogen
The equation(s) for the laboratory preparation of hydrogen is:
3Fe
(s)
+ 4H
2
O
(l)
→ Fe
3
O
4 (s)
+ 4H
2 (g)
.
All are correct.
Zn
(s)
+ 2HCl
(aq)
→ ZnCl
2 (aq)
+ H
2 (g)
.
2Na
(s)
+ 2H
2
O
(l)
→ 2NaOH
(aq)
+ H
2 (g)
.
Does iron react with dilute alkalis?
Yes, readily.
No.
Yes, slowly.
Only if the alkali is highly concentrated.
Aluminium metal reacts with strong, hot, concentrated alkalis to produce:
Aluminium oxide.
Aluminium hydroxide.
Oxygen gas.
Hydrogen gas.
Which gas could be collected by the upward displacement of air?
Oxygen.
Carbon dioxide.
Hydrogen.
Chlorine.
What observation is made when a burning splint is placed into a test tube containing hydrogen gas?
A 'pop' sound is heard.
The flame is extinguished.
The flame brightens.
Smoke is produced.
