Gk Quiz 6

Q 1. What is laughing gas?

    Nitrous Oxide 
    Carbon monoxide 
    Sulphur dioxide 
    Hydrogen peroxide 
See Answer:

Q 2. The two elements that are frequently used for making transistors are?

    boron and aluminium 
    silicon and germanium 
    iridium and tungsten 
    niobium and columbium 
See Answer:

Q 3. The filament of an electric bulb is made of ?

    tungsten 
    nichrome 
    graphite 
    iron 
See Answer:

Q 4. Diamond is an allotropic form of ?

    germanium 
    carbon 
    silicon 
    sulphur 
See Answer:

Q 5. In fireworks, the green flame is produced because of ?

    sodium 
    barium 
    mercury 
    potassium 
See Answer:

Q 6. Permanent hardness of water can be removed by adding ?

    chlorine 
    washing soda 
    potassium permanganate 
    bleaching powder 
See Answer:

Q 7. Marsh gas is ?

    nitrogen 
    ethane 
    methane 
    hydrogen 
See Answer:

Q 8. LPG consists of mainly ?

    methane, ethane and hexane 
    ethane, hexane and nonane 
    methane, hexane and nonane 
    methane, butane and propane 
See Answer:

Q 9. Production of chlorofluorocarbons (CFC) gas which is proposed to be banned in India, is used in which of the following domestic products?

    Television 
    Refrigerator 
    Tube light 
    Cooking gas 
See Answer:

Q 10. Which of the following does not contain a coinage metal?

    Silver and Gold 
    Zinc and Gold 
    Copper and Silver 
    Copper and Gold 
See Answer:


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