Chemistry General Knowledge Questions Practice Question and Answer
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Q: The percentage of nitrogen present in ammonium sulphate is:
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60b0d6453f7fb454b9dd0d87- 1$$ 30.5 \% $$false
- 2$$ 18 \% $$false
- 3$$ 21 \% $$true
- 4$$ 25\% $$false
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Answer : 3. "$$ 21 \% $$"
Q: The stranger gas is also known as___________.
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60ac7564d752621d4f9b8fdd- 1Heliumfalse
- 2Argonfalse
- 3Xenontrue
- 4Neonfalse
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Answer : 3. "Xenon "
Q: Which of the following gases turn lime water milky?
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609e4dcc1679a537e39efa2e- 1Carbon Dioxidetrue
- 2Oxygenfalse
- 3Nitrogenfalse
- 4Hydrogenfalse
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Answer : 1. "Carbon Dioxide "
Q: Which of the following has the least melting point?
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609e4d5d6397877f31964090- 1Carbonfalse
- 2Silverfalse
- 3Mercurytrue
- 4Goldfalse
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Answer : 3. "Mercury "
Q: What is the common name of CaoCl2?
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609e4cd76397877f31963e9f- 1Washing Sodafalse
- 2Bleaching Powdertrue
- 3Baking Powderfalse
- 4Baking Sodafalse
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Answer : 2. "Bleaching Powder "
Q: How are 'anions' formed?
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609e4c75e941dd6183d99e45- 1Addition of electrontrue
- 2Removal of electronfalse
- 3Addition of protonfalse
- 4Removal of protonfalse
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Answer : 1. "Addition of electron "
Q: The coil in a heater is made of
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60939952b8018e6486aef888- 1Nichrometrue
- 2Tungstenfalse
- 3Copperfalse
- 4Ironfalse
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Answer : 1. "Nichrome"
Q: In which process is a protective zinc coating applied on iron to prevent it from rusting?
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60927508cc29175f0f879192- 1Galvanisationtrue
- 2Annealingfalse
- 3Smeltingfalse
- 4Weldingfalse
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Answer : 1. "Galvanisation"
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