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Question Detail
What is extracted from Bauxite ?
- Mica
- Aluminium
- Copper
- Tin
Answer: Option B
1. Oxides of metals are alkaline.
- TRUE
- FALSE
Answer: Option A
2. Mass number of a nucleus is :
- the sum of the number of protons and neutrons present in the nucleus
- always more than the atomic weight
- always less than its atomic number
- None of above
Answer: Option A
3. Acids taste
- Sour
- Sweet
- May be both
- None of both
Answer: Option A
4. Which acid is present in lemon ?
- marlic acid
- citric acid
- lactic acid
- tartaric acid
Answer: Option B
Explanation:
citric acid is present in lemon.
5. Which of the following gases is the most toxic?
- Carbon dioxide
- Sulphur dioxide
- Carbon monoxide
- Acetic acid
Answer: Option C
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