Q. No.What volume of 15 V H2 O2 required to react completely with 10 ml of 1 M KMnO4 in acidic medium?
1. 18.72 ml
2. 25.51 ml
3. 14.20 ml
4. 10.65 ml
H2O2 functions as a
1. Bleaching agent
2. Oxidising agent
3. Oxidant for a rocket fuel
4. All of the above
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A substance on heating gives oxygen and it turns acidified KI solution violet and reduces acidified KMnO4 solution. Hence, the substance is
1. SO2
2. K2CrO4
3. H2O2
4. All of the above
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Incorrect statement is
1. Hybridisation of oxygen for water in solid, liquid and gas phase is sp3
2. Density of water is more than the density of ice
3. Boiling point of HF> Boiling point of H2O, as electronegativity of F>O
4. All of thhe above
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Which of the following reaction involve in Bosch's process used for the manufacturing of H2?
1. CH3OH400°C→catalyst CO+2H2
2. H2+CO+H2O→CO2+2H2
3. 3Fe+4H2O→Fe3 O4 + 4H2
4. C2H6Cracking→2C+3H2
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Which of the following hydride does not give H2 at anode on electrolysis in molten state?
1. SrH2
2. BaH2
3. MgH2
4. CaH2
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H2O2 restores the colour of old lead paintings, blackend by the action ofH2S gas, by
1. Oxidising PbSO3 to PbSO4
2. Converting PbCO3 to Pb
3. By oxidising PbS to PbSO4
4. Converting PbO2 to Pb
C(s)+H2O(g)1270K→CO(g)+H2(g)⏟
coal Syn gas
The above process is known as
1. Coal gasification
2. Coal digestion
3. Syngas gasification
4. Water gasification
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Electrolysis of molten hydrolith produces
1. H2 gas at cathode
2. H2 gas at anode
3. N2 gas at cathode
4. N2 gas at anode
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