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Question Detail
Which have the maximum density ?
- Water
- Benzene
- Ice
- Chloroform
Answer: Option A
1. Petroleum is found in ?
- Marshy land
- Metamorphic rocks
- Igneous rock
- Sedimentary rocks
Answer: Option D
2. What is a mixture of potassium nitrate powdered charcoal and sulphur called?
- paint
- aluminium
- brass
- gun powder
Answer: Option D
Explanation:
gun powder is the mixture of potassium nitrate powdered charcoal and sulphur.
3. What is laughing gas ?
- nitrous oxide
- nitric oxide
- nitrogen oxide
- nitrogen peroxide
Answer: Option A
4. Which gas is filled in refrigerators ?
- Chlorofluorocarbon
- Acetylene
- Methane
- Butane
Answer: Option A
5. What is the hardest form of carbon ?
- coke
- graphite
- charcoal
- diamond
Answer: Option D
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