Chemistry Set 3
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This set of General Science Multiple Choice Questions & Answers (MCQs) focuses on Chemistry Set 3
Q1 | Cassiterite is an ore of which of the following ?
- Iron
- Zinc
- Copper
- Tin
Q2 | Which of the following are found in nucleus of Deuterium
- 1 proton & 1 neutron
- 2 protons
- 1 proton and 1 electron
- 2 neutrons only
Q3 | Which among the following provides the centripetal force to an electron circulating aroundthe nucleus?
- electrostatic forces of repulsion
- electrostatic force of attraction
- speed of the electron
- nuclear charge
Q4 | Which among the following of a catalyst does not change at the end of a reaction?
- Quantity
- Chemical Composition
- Both Quantity and Chemical com position
- None of the above
Q5 | The noble gases are a group of chemical elements with very similar properties: under standard conditions, they are all odorless, colorless, monatomic gases, with a very low chemical reactivity. How many Noble gases occur naturally?
- 5
- 6
- 7
- 8
Q6 | Hard Water contains which of the following?
- Aluminum
- Chlorine
- Calcium
- Zinc
Q7 | Which among the following is an ionic solid?
- Diamond
- Dry ice
- Table salt
- All are ionic solids
Q8 | Which among the following statements about Ozone is INCORRECT?
- It is found in the upper atmosphere filters potentially damaging ultraviolet light from reaching the Earth‘s surface
- It is lighter than oxygen that is why it is found in the upper atmosphere
- It is an allotrope of oxygen
- All are correct
Q9 | Which among the following is correct ?
- Oxidation takes place at Cathode and Reduction Takes Place at Anode
- Oxidation takes place at Anode and Reduction Takes place at Cathode
- Both Oxidation and Reduction takes place at cathode
- Both Oxidation and Reduction takes place at Anode
Q10 | The atomic weight of Chlorine is 35. It consists of _______?
- 17 Protons + 18 Neutrons
- 17 Neutrons + 18 protons
- 17 Neutrons + 17 Protons + 1 electron
- None of the above
Q11 | When we buy a Jewellery of 22 carat Gold , this means that we are getting a purity of gold with ______?
- 90%
- 91.67%
- 95.50%
- 98%
Q12 | An Jewellery was left exposed to the atmosphere for some time and it becomes coated with green carbonate. The Jewellery is made up of which of the following?
- Copper
- Silver
- Zinc
- Gold
Q13 | The process of purifying water by spraying water on to a bed of stones where microorganism live so that the microorganisms feed on the pathogens in water and make the water free from harmful pathogens is called?
- Stone bed method
- biofilter method
- aerobic filtration
- anerobic filtration
Q14 | As per Avogadro‘s hypothesis , equal volumes of different gases at the same temperatureand pressure contain equal number of ______?
- Atoms
- Molecules
- Particles
- Electrons
Q15 | Duralumin which is used in making aero planes is an alloy consisting of _____?
- Aluminum & Copper
- Aluminum, Copper & Manganese
- Aluminum, Copper, Manganese & Magnesium
- Aluminum and zinc
Q16 | Which among the following was the first artificially produced element?
- Neptunium
- Ununbium
- Technetium
- none of the above
Q17 | Froth & Foams are examples of which of the following ?
- solid suspended in gas
- liquid suspended in gas
- gas suspended in liquid
- gas suspended in solid
Q18 | Which among the following is most electronegative element?
- Chlorine
- FLourine
- Bromine
- All of them have same electronegativity
Q19 | What is the main use of Bisphenol A drug ?
- A drug which was used by sports persons for doping
- A chemical compound which is used in plastics used for food packaging
- An alloy which is used in cans of cola drinks
- None of the above
Q20 | Which among the following is not a constituent of gobar gas?
- Methane
- Propane
- Carbondioxide
- All are constiuents of Gobar gas
Q21 | Which among the following is incorrect regarding the chemical nature of Diamond & Graphite?
- Density of Diamond is higher than that of Graphite
- Diamond is chemically unreactive while graphite is mild reactive
- Both Diamond and Graphite are good conductors of electricity
- None of the above
Q22 | Galvanizing is a metallurgical process that is used to coat steel or iron with which of thefollowing?
- Zinc
- Lead
- Chromium
- Copper
Q23 | Which among the following is Quick Silver?
- Aluminium
- Mercury
- Lead
- Zinc
Q24 | The primary part of Liquefied Petroleum Gas LPG is ______?
- Butance
- Methane
- Propane
- Ethane
Q25 | Which among the following explains the radiation emitted by black bodies?
- Big-bang theory
- Quantum Theory
- Piezoelectric Effect
- None of the above