Chemistry Practice Question and Answer
8 4 Q:
5ee0d1d3ca41b347ed350a6c 4 Q:
5eeb131bad25df5a632567d5 4 Q:
64bfc857a2d4dcaf044da339 Answer : 4. "Oxygen"
4 Q:
5f6c2e19ec13dd7480faf0f8 4 Q:
5eeae05113d72d584fb2f5c3 4 Q:
5eeadf0fad25df5a63247e87 4 Q:
60b0d6453f7fb454b9dd0d87 4 Q:
5f0439f6d996064ceba91846
Q: In which of the following chlorine has + 1 oxidation number?
1958 05ee0d1d3ca41b347ed350a6c
5ee0d1d3ca41b347ed350a6c- 1Zinc chloridefalse
- 2Chlorinefalse
- 3Hypochlorous acidtrue
- 4Hydrochloric acidfalse
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Answer : 3. "Hypochlorous acid"
Q: Used in removing permanent hardness of water?
1949 05eeb131bad25df5a632567d5
5eeb131bad25df5a632567d5- 1running sodatrue
- 2bleaching powderfalse
- 3Caustic sodafalse
- 4Baking Sodafalse
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Answer : 1. "running soda"
Q: Which of the following elements is NOT a component of baking soda?
1939 164bfc857a2d4dcaf044da339
64bfc857a2d4dcaf044da339- 1Hydrogenfalse
- 2Calciumfalse
- 3Sodiumfalse
- 4Oxygentrue
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Answer : 4. "Oxygen"
Explanation :
1. Which of the following calcium elements is not a component of baking soda?
2. The chemical formula of baking soda is NaHCO3, which is composed of four elements sodium, hydrogen, carbon and oxygen.
3. Baking soda is an alkaline substance used as a leavening agent in baking.
Q: Potassium nitrate is used in
1931 05f6c2e19ec13dd7480faf0f8
5f6c2e19ec13dd7480faf0f8- 1medicinefalse
- 2saltfalse
- 3glassfalse
- 4fertilisertrue
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Answer : 4. "fertiliser"
Q: Oxides commonly occur in metals?
1923 05eeae05113d72d584fb2f5c3
5eeae05113d72d584fb2f5c3- 1acidicfalse
- 2Effortlessfalse
- 3Amphotericfalse
- 4Alkalinetrue
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Answer : 4. "Alkaline"
Q: How many categories of elements are divided on the basis of properties?
1922 05eeadf0fad25df5a63247e87
5eeadf0fad25df5a63247e87- 14false
- 26false
- 33true
- 42false
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Answer : 3. "3"
Q: The percentage of nitrogen present in ammonium sulphate is:
1920 060b0d6453f7fb454b9dd0d87
60b0d6453f7fb454b9dd0d87- 1$$ 30.5 \% $$false
- 2$$ 18 \% $$false
- 3$$ 21 \% $$true
- 4$$ 25\% $$false
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Answer : 3. "$$ 21 \% $$"
Q: Burning of Hydrogen produces
1913 05f0439f6d996064ceba91846
5f0439f6d996064ceba91846- 1Soilfalse
- 2Watertrue
- 3Oxygenfalse
- 4Ashfalse
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Answer : 2. "Water"
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