Monthly archives: December, 2016

Catalytic Decomposition of Hydrogen Peroxide H2O2 – Elephant’s Toothpaste Experiment

Catalytic Decomposition of H2O2 – Elephant’s Toothpaste Experiment Elephant’s toothpaste is a foamy substance formed as a result of rapid decomposition of hydrogen peroxide. Elephant’s toothpaste reaction experiment is generally used for classroom demonstrations as it requires fewer ingredients and makes a “volcano of foam”. Description: H2O2 is decomposed by Iodide Ion. Iodide ion is …

Chemical Reaction Quiz Part16

  Chemical Reaction Quiz Science Quiz by www.ChemistryNotesInfo.com Source www.reddit.com This Chemical Reaction Quiz part16 is based on chemical reactions. 1. Chemical reaction always gives- Reactants A change of state A different substance Water All of the above Show Answer 2. From given below, 4-balanced chemical equations, which is example of combustion reaction- 2Mg + …

Chemical Reactions Quiz Part15

  Chemical Reactions Quiz Science Quiz by www.ChemistryNotesInfo.com This Chemical Reactions Quiz part15 is based on chemical reaction. 1. Chemical Reaction, 2H₂O → 2H₂ + O₂ is a- Synthesis Reaction Decomposition Reaction Combustion Reaction Single Displacement Reaction Double Displacement Reaction Show Answer 2. Chemical Reaction, 8Fe + S₈ → 8FeS is a- Synthesis ReactionDecomposition Reaction …

Science Quiz Part14

Science Quiz on Measuring Devices Science Quiz by www.ChemistryNotesInfo.com This Science Quiz part14 is based on different measuring devices or measuring instruments used in the field of Science. 1. Distance traveled, displacement is measured by: TaxmeterTaximeterDistancemeterDisplacementmeter Show Answer 2. Surface tension of the liquid is measured by: TacheometerTintometerTensiometerTachometer Show Answer 3. Temperature is measured by: …

Science Quiz Part13

Science Quiz on Measuring Devices Science Quiz by www.ChemistryNotesInfo.com This Science Quiz part13 is based on different measuring devices or measuring instruments used in the field of Science. 1. Color is measured by: TintometerColor MeterColor Identification DevicesColor Measuring Instrument Show Answer 2. Speed, velocity of the vehicle is measured by: Speed DetectorSpeed TesterSpeedometerNone of the …