Chemistry Practice Question and Answer
2 4 Q:
6491958013e8bde0322b983e Answer : 3. "combination"
4 Q:
63aaa8a35770eb565d50089c
Q: Burning of coal is a ______ reaction.
368 06491958013e8bde0322b983e
6491958013e8bde0322b983e- 1displacementfalse
- 2decompositionfalse
- 3combinationtrue
- 4double displacementfalse
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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.
Q:Read the following questions carefully and answer them.
Which of the following is the main nitrogenous waste in humans ?
357 063aaa8a35770eb565d50089c
63aaa8a35770eb565d50089c- 1Ammoniafalse
- 2Ureafalse
- 3Uric Acidtrue
- 4Ammonium Nitratefalse
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Answer : 3. "Uric Acid "
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