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Chemistry Previous Year Questions and Answers (in Malayalam)
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This Lesson Is Disscused of Chemistry Previous Year Questions for Kerala PSC Aspirnts

Radha krishnan is teaching live on Unacademy Plus

Radha krishnan
Hai frnds. I am Radha krishnan.Teaching for kerala psc exams & Manages Facebook,Whatsapp, Telegram & precise Online Psc Youtube channel

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  1. KERALA PSC CHEMISTRY PREVIOUS YEAR QUESTIONS & ANSWERS Presented B RADHAKR1SHNAN


  2. KERALA PSC CHEMISTRY PREVIOUS YEAR QUESTIONS & ANSWERS Presented B RADHAKR1SHNAN


  3. KERALA PSC CHEMISTRY PREVIOUS YEAR QUESTIONS & ANSWERS Presented B RADHAKR1SHNAN


  4. In vulcanisation, with which the natural rubber is heated?-Sulphur Which chemical used as a fixer' in photography?- Sodium thiosulphate Which acid used to remove inkspots? - Oxalic acid All acids contain which element - Hydrogen AIn which processes light energy is converted into chemical energy? Photosynthesis


  5. AWhich metal used to pollute the air of a big city?- Lead Which is a non-metal that remains liquid at room-temperature? - Bromine What is the main constituent of natural gas-Methane For which thing is Washing soda the common name,-Sodium carbonate Which is a major constituent of Biogas? - Methane


  6. Which metal is used for making boats because it does not corrode by seawatera- Titanium Which contain high content of lead?- High octane fuel Which is used in beauty parlours for' hair setting? - Sulphur The filament of an electric bulb is made of which metal? - Tungsten What is the average salinity of sea water?-3.5%


  7. Which isotope of uranium capable of sustaining chain reactions?-U-235 Which is used as a filler in rubber tyres? - Carbon black By whom was the quantum theory first enunciated? - By Max Planck Which charcoal is used to deeolourise raw sugar? -Wood charcoal AWhich is the most important ore of aluminium?- Bauxite


  8. AWhich is the metal used in storaoe batteries? - Lead How are Oxygen and ozone?-Allotropes Which is the best conductor of electricity- Silver Gobar gas' contains mainly which gas - Methane A Which are the Actinides elements with atomic numbers? - From 89 to 103 Which elements is obtained from sea weeds - lodine