Chemistry Solved Questions and Answers Set 36

February 11, 2019 entranciology Chemistry Solved Questions and Answers Sets, Solved Questions and Answers Sets For Competitive Exams 0

Q.1:- The three elements most used in chemical fertilizers are ?

  1. Nitrogen, Sodium, Sulphur
  2. Nitrogen, Potassium, Phosphorus
  3. Nitrogen, Phosphorus, Sodium
  4. Calcium, Sodium, Sulphur

Q.2:- The gas is commonly used in Anaesthesia ?

  1. Methane
  2. Nitrous Oxide
  3. Nitrogen
  4. Hydrogen Peroxide

Q.3:- In the manufacture of safety matches, we use ?

  1. White phosphorus
  2. Black phosphorus
  3. Violet phosphorus
  4. Red phosphorus

Q.4:- Germanium is an example of ?

  1. An intrinsic semiconductor
  2. An n-type semiconductor
  3. A p-type semiconductor
  4. An insulator

Q.5:- Which is not a fertilizer ?

  1. Urea
  2. Super Phosphate
  3. Sodium Sulphate
  4. Potassium Nitrate

Q.6:- Iodine deficiency in diet is known to cause ?

  1. Beri-Beri
  2. Goitre
  3. Rickets
  4. Night-Blindness

Q.7:- Which gas is used in filling electric bulbs ?

  1. Neon
  2. Argon
  3. Radon
  4. Krypton

Q.8:- Which halogen form maximum compounds with Xenon ?

  1. F
  2. Cl
  3. Br
  4. I
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Q.9:- Essential constituent of all organic compound is ?

  1. Nitrogen
  2. Sulphur
  3. Carbon
  4. Hydrogen

Q.10:- Naphthalene is a volatile solid it is best purified by ?

  1. Crystallization
  2. Distillation
  3. Steam Distillation
  4. Sublimation

Q.11:- Hydrogen bonding is maximum in ?

  1. Ethanol
  2. Diethyl Ether
  3. Ethyl Chloride
  4. Triethylamine

Q.12:- Glycerol is purified by ?

  1. Steam Distillation
  2. Vacuum Distillation
  3. Fractional Distillation
  4. Simple Distillation

Q.13:- Water and alcohol can be separated from a mixture by ?

  1. Fractional distillation
  2. Sublimation
  3. Decantation
  4. Evaporation

Q.14:- When Chlorine is added to Ethylene we get ? [BSSC Exams 2015]

  1. Ethylidene Chloride
  2. Ethyl Chloride
  3. Ethylene Chlorohydrin
  4. Ethylene Chloride

Q.15:- The compound with the highest boiling point is ?

  1. n-pentane
  2. 2-methylbutane
  3. n-hexane
  4. 2, 2-dimethylpropane

Q.16:- The gas produced in marshy places due to decomposition of vegetation is ?

  1. Carbon Monoxide
  2. Carbon Dioxide
  3. Sulphur Dioxide
  4. Methane
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Q.17:- Ethanoyl Chloride is the IUPAC name of ?

  1. CH3CH2Cl
  2. CH3COCl
  3. CCl3CHO
  4. CH2ClCOOH

Q.18:- Purification of petroleum is carried out by the following method ?

  1. Fractional distillation
  2. Steam distillation
  3. Vacuum distillation
  4. Simple distillation

Q.19:- When water vapours are passed over aluminium carbide, we get ?

  1. Acetaldehyde
  2. Ethylene
  3. Methane
  4. Methyl Alcohol

Q.20:- The name of the poisonous gas formed by the interaction of Acetylene and Arsenic Trichloride is ?

  1. Phosgene
  2. Lewisite
  3. Mustard Gas
  4. Weston

Q.21:- What happens when a drop of glycerol is added to crushed KMnO4 spread on a paper ? [CGL, UDC Exam 2015]

  1. There is a crackling sound
  2. There is no reaction
  3. The paper ignites
  4. There is a violent explosion
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Q.22:- A plastic Bakelite is a compound of HCHO with ?

  1. Benzene
  2. Phenol
  3. Ammonia
  4. Hydrocarbons

Q.23:- Which one of the following is used to remove ink and rust stains on cloth ?

  1. Oxalic Acid
  2. Alcohol
  3. Ether
  4. Kerosene Oil

Q.24:- Fat is ?

  1. A lipid
  2. A protein
  3. A carbohydrate
  4. An amino acid

Q.25:- The disaccharide present in milk is ?

  1. Sucrose
  2. Lactose
  3. Maltose
  4. None of these

 

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