Learn more about the properties, composition, and structure of substances (elements and compounds) with these Chemistry questions and answers. This Test can be used by students preparing for Chemistry in JAMB, WAEC, NECO or Post UTME.
A
B
C
D
Correct answer is B
No explanation has been provided for this answer.
How many more isomers of the compound above can be obtained ?
5
4
3
2
Correct answer is B
No explanation has been provided for this answer.
The IUPAC nomenclature of the organic compound with the above structural formula is
3-ethyl-2,5-dimethylhexane
4-ethyl-2,5-dimethylhexane
3-ethyl-2,5,5 - trimethylpentane
3-ethyl, 1,1,4-trimethylpentane
Correct answer is A
The name of the compound is 3 - ethyl - 2,5 - dimethylhexane.
In the diagram above the gas Y could be
hydrogen chloride
oxygen
carbon (IV) oxide
chlorine
Correct answer is A
- Two gases that can be used in the study of fountain experiment is ammonia gas and hydrogen chloride gas.
- Ammonia dissolves into the water and the pressure in the container drops. As a result, more water is forced into the container from another inlet creating a fountain effect.
- All the hydrogen chloride in the flask dissolves in the water drops from the pipette, creating a vacuum in the flask. Water is then sucked up at great speed from the bowl, creating a spectacular 'fountain' in the flask.
liquid sate
solid/liquid state
solid state
gaseous state
Correct answer is A
No explanation has been provided for this answer.