Chemistry GK Practice Question and Answer
2 4 Q:
63aaa6fc5770eb565d4ff628 4 Q:
6491958013e8bde0322b983e Answer : 3. "combination"
Q:Read the following questions carefully and answer them.
“All the four quantum numbers of two electrons in an atom are not the same.” It is the law of —
1163 063aaa6fc5770eb565d4ff628
63aaa6fc5770eb565d4ff628- 1Hund’sfalse
- 2Exclusion Principle of Paulitrue
- 3Uncertainty Principle of Heisenbergfalse
- 4Avogadro’s Lawfalse
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Answer : 2. " Exclusion Principle of Pauli "
Q: Burning of coal is a ______ reaction.
1030 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.
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