Chemistry (General Science): All SSC Exams Previous Years Questions Papers Solved Part 11

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Q.1:- During fermentation of sugar, the compound which is always formed is ?

  1. Methyl Alcohol
  2. Ethyl Alcohol
  3. Acetic Acid
  4. Ethylene

Q.2:- Iron and manganese present as pollutants in water cannot be removed by ?

  1. Oxidation followed by settling and filtration
  2. Chlorination
  3. Ion exchange process
  4. Lime soda process or manganese zeolite process

Q.3:- Limestone is a raw material used by which industry ?

  1. Aluminium
  2. Fertilizers
  3. Cement
  4. Petrochemicals

Q.4:- LPG is mostly liquefied ?

  1. Hydrogen
  2. Oxygen
  3. Butane
  4. Methane

Q.5:- The source of energy that causes the least global warming is ?

  1. Coal
  2. Geothermal Energy
  3. Natural Gas
  4. Petroleum

Q.6:- The chemical name of quartz is ?

  1. Calcium Oxide
  2. Calcium Phosphate
  3. Sodium Phosphate
  4. Sodium Silicate

Q.7:- Terylene is a condensation polymer of Ethylene Glycol and which acid ?

  1. Benzoic Acid
  2. Salicylic Acid
  3. Phthalic Acid
  4. Terephthalic Acid

Q.8:- The purest form of water in nature is ?

  1. Rain Water
  2. Lake Water
  3. River Water
  4. Sea Water

Q.9:- Which of the following can be found as pollutants in the drinking water in some parts of India ?

Select the correct answer using the code given below :

  • Arsenic
  • Sorbitol
  • Fluoride
  • Formaldehyde
  • Uranium
  1. B, D and E
  2. A, B, C, D and E
  3. A, C and E
  4. A and C

Q.10:- How many neutrons are there in 92U238 atom ?

  1. 92
  2. 238
  3. 146
  4. 330

Q.11:- An element of atomic no. 29 belongs to ?

  1. S-block
  2. D-block
  3. P-block
  4. F-block

Q.12:- Which of the following elements is not radioactive ?

  1. Radium
  2. Plutonium
  3. Zirconium
  4. Uranium

Q.13:- The presence of Cobalt in Vitamin B12 was established for rover first time by ?

  1. Hydrolysis test
  2. Spectroscopy
  3. Borax-Bead Test
  4. Sodium Nitroprusside Test

Q.14:- An example of replenshible energy source is ?

  1. Coal
  2. Petroleum
  3. Lignite
  4. Biomass

Q.15:- Helium gas is filled in balloons because ?

  1. Its atomic number is 2
  2. It is lighter than air
  3. It is one of the constituents of water
  4. It is a noble gas
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Q.16:- The coating of a thin layer of zinc on steel or Iron Objects is known as ?

  1. Hot dipping
  2. Tinning
  3. Galvanising
  4. Electroplating

Q.17:- The temperature of Oxy-Acetylene flame is around ?

  1. 2800 Deg C
  2. 3200 Deg C
  3. 4000 Deg C
  4. 1500 Deg C

Q.18:- Which of the toxic heavy metals is found in modern tannery industries ?

  1. Nickel
  2. Zinc
  3. Chromium
  4. Lead

Q.19:- Which of the following is used in welding broken pieces of Iron rails and machine parts ?

  1. Aluminium Sulphate
  2. Solder
  3. Aluminium Powder
  4. None of the above

Q.20:- Glass is a ?

  1. Superheated solid
  2. Supercooled liquid
  3. Supercooled gas
  4. Superheated liquid

Q.21:- Two elements which are used to absorb neutrons to control the chain reaction during nuclear fission are ?

  1. Boron and Cadmium
  2. Boron and Plutonium
  3. Cadmium and Uranium
  4. Uranium and Boron

Q.22:- Which of the following produces highest amount of energy upon Oxidation ?

  1. Protein
  2. Fat
  3. Glucose
  4. An Alkane

Q.23:- Which one of the following statements is not correct ?

  1. Soft and flexible
  2. Strong and hard
  3. Chemical resistant
  4. Withstand higher temperatures

Q.24:- The common name for the compound having formal NaOH is ?

  1. Caustic Soda
  2. Caustic Potash
  3. Soda Ash
  4. Sodium Hydroxide

Q.25:- Non-Stick kitchenware are coated with ?

  1. PVC
  2. Graphite
  3. Teflon
  4. Silicon

 

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