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Chemistry GK Practice Question and Answer

Latest Popular RatedShowing Page 12 of 12Total Questions 90 Join Examsbook

Q:
Which of the following is considered to be the fifth state of matter?
406 0

1
Bose-Einstein condensate
Correct
Wrong
2
Plasma
Correct
Wrong
3
Solid
Correct
Wrong
4
Gas
Correct
Wrong

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Answer : 1. "Bose-Einstein condensate "

Q:
Burning of coal is a ______ reaction.
366 0

1
displacement
Correct
Wrong
2
decomposition
Correct
Wrong
3
combination
Correct
Wrong
4
double displacement
Correct
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Answer : 3. "combination"
Explanation :
1. The burning of coal is an example of a combination reaction (a combination).
2. When two or more elements combine to form a compound, it is called a combination reaction.

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