General Science Multiple Choice Questions
Published:
1. Acids react with many reactive metals to give off
A. hydrogen gas.
B. oxygen gas.
C. ammonia gas.
D. carbon dioxide gas.
2. The entity which exhibits characteristics of living and non-living things is
A. moss.
B. bacterium.
C. fungus.
D. virus.
3. The S.I. unit of momentum is
A. $m s^{-2}$.
B. $kg m s^{-1}$.
C. $kg m s^{-2}$.
D. $kg m$.
4. An indication of puberty in a girl is the
A. growth of grey hair in the pubic region.
B. broadening of waist.
C. deepening of the voice.
D. broadening of the chest.
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Science Practice Questions
Starting with question one: What do acids produce when they react with many reactive metals?
Question 1
Acids react with many reactive metals to give off...
A. hydrogen gas.
B. oxygen gas.
C. ammonia gas.
D. carbon dioxide gas.
A general chemical reaction for this is: metal plus acid produces a salt and hydrogen gas. For example, zinc reacting with hydrochloric acid makes zinc chloride and hydrogen.
So, the correct answer is hydrogen gas, which is option A.
Question two asks about the entity which exhibits characteristics of both living and non-living things.
Question 2
The entity which exhibits characteristics of living and non-living things is...
A. moss.
B. bacterium.
C. fungus.
D. virus.
Viruses are unique. Inside a host cell, they replicate and show living traits, but outside, they are essentially inert particles, often described as being on the edge of life.
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