Chemistry Questions Practice Question and Answer
8 4 Q:
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6576edf47274ac7b5885d375 Answer : 3. "Ethanol + carbon dioxide + energy"
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Q: Which of the following is the most common kidney stone-forming compound?
1969 05ee85d18c9ddb00b8bda9adc
5ee85d18c9ddb00b8bda9adc- 1Calcium oxalatetrue
- 2Magnesium oxidefalse
- 3Sodium bicarbonatefalse
- 4Magnesium citratefalse
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Answer : 1. "Calcium oxalate"
Q: In which of the following chlorine has + 1 oxidation number?
1945 05ee0d1d3ca41b347ed350a6c
5ee0d1d3ca41b347ed350a6c- 1Zinc chloridefalse
- 2Chlorinefalse
- 3Hypochlorous acidtrue
- 4Hydrochloric acidfalse
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Answer : 3. "Hypochlorous acid"
Q: Potassium nitrate is used in
1914 05f6c2e19ec13dd7480faf0f8
5f6c2e19ec13dd7480faf0f8- 1medicinefalse
- 2saltfalse
- 3glassfalse
- 4fertilisertrue
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Answer : 4. "fertiliser"
Q: Gasohol is –
1878 05ef2efc081a47f2e7aebe259
5ef2efc081a47f2e7aebe259- 1Any gas dissolved in alcoholfalse
- 2Ethyl alcohol + Kerosene oilfalse
- 3Ethyl alcohol + Petroltrue
- 4Natural Gas + Ethyl alcoholfalse
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Answer : 3. "Ethyl alcohol + Petrol "
Q: Which of the following products are formed during anaerobic respiration in yeast?
1875 06576edf47274ac7b5885d375
6576edf47274ac7b5885d375- 1Acetic acid + energyfalse
- 2Lactic acid + carbon dioxide + energyfalse
- 3Ethanol + carbon dioxide + energytrue
- 4Lactic acid + energyfalse
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Answer : 3. "Ethanol + carbon dioxide + energy"
Explanation :
1. Yeast breaks down glucose, producing ethanol and carbon dioxide and energy.
2. Yeast reacts anaerobically.
Q: The air is the example of:
1818 05ee0d53b1541492ae598124e
5ee0d53b1541492ae598124e- 1The solution of solid in the gasfalse
- 2The solution of gas in the gastrue
- 3The solution of liquid in the gasfalse
- 4The solution of liquid in the solidfalse
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Answer : 2. "The solution of gas in the gas"
Q: What is the mass number of an element, the atom of which contains two Protons, two neutrons and two electrons?
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5ee35e7455d51a0f6482cd3c- 12false
- 24true
- 36false
- 48false
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Answer : 2. "4 "
Q: Water gas is the mixture of
1779 05ed8add854f88e519fa1b8c9
5ed8add854f88e519fa1b8c9- 1carbon dioxide and hydrogenfalse
- 2carbon monoxide and hydrogentrue
- 3carbon dioxide and nitrogenfalse
- 4carbon monoxide and nitrogen bearfalse
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Answer : 2. "carbon monoxide and hydrogen "
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