Chemistry Solved Questions and Answers Set 37

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Q.1:- Proteins given purple colour with ?

  1. Benedict’s reagent
  2. Iodine Solution
  3. Ninhydrin Reagent
  4. Biuret

Q.2:- Vitamin B2 is also known as ?

  1. Riboflavin
  2. Pyridoxin
  3. Ascrobic Acid
  4. None of these

Q.3:- The human body does not produce ?

  1. Vitamins
  2. Enzymes
  3. Proteins
  4. Hormones

Q.4:- The alkaloid naturally found in coffee, cocoa and colanut is ? [SSC CGL Exam 2014]

  1. Cocaine
  2. Morphine
  3. Tannin
  4. Caffeine

Q.5:- Amino acids present in insulin are ?

  1. 21
  2. 51
  3. 30
  4. 102

Q.6:- Which one of the following allotropes of the carbon is used in cutting and drilling ? [CDS Exam 2006]

  1. Diamond
  2. Graphite
  3. Activated Charcoal
  4. Carbon Black

Q.7:- The digestion of fat in intestine is aided by ?

  1. Diffusion
  2. Peptization
  3. Emulsification
  4. Neutralization

Q.8:- The function of enzymes in the living system is to ?

  1. Transport Oxygen
  2. Provide Immunity
  3. Catalyse Bio-Chemical Reactions
  4. Provide Energy

Q.9:- Charring of sugar is due to ?

  1. Oxidation
  2. Reduction
  3. Dehydration
  4. Reduction and Hydration

Q.10:- Which one of the following Vitamins is essential for coagulation for blood ? [CDS Exam 2006]

  1. Vitamin A
  2. Vitamin B12
  3. Vitamin K
  4. Vitamin D

Q.11:- The process of improving the quality of rubber by heating it with Sulphur is called ? [SSC Exams 2014]

  1. Vulcanization
  2. Acceleration
  3. Sulphonation
  4. Galvanization

Q.12:- London smog is found in ?

  1. Summer during day time
  2. Summer during morning time
  3. Winter during morning time
  4. Winter during day time
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Q.13:- What are the types of bonds present in CuSO4.5H2O ? [NDA Exams 2007]

  1. Electrovalent and Covalent
  2. Electrovalent and Coordinate
  3. Electrovalent, Covalent, Coordinate and Hydrogen Bond
  4. Covalent and Coordinate Covalent

Q.14:- A base is a substance which ?

  1. Is better in taste
  2. Gives OH ions in aqueous solution
  3. Can donate electron
  4. All of the above

Q.15:- Which of the following types of materials act as effective catalysts ?

  1. Alkali Metals
  2. Transition Metals
  3. Alkaline Earth Metals
  4. Radioactive Metals

Q.16:- TEL minimize the knocking effect when mixed with petrol, it acts as ?

  1. Positive Catalyst
  2. Negative Catalyst
  3. Auto Catalyst
  4. Induced Catalyst

Q.17:- Which law of thermodynamics introduces the concept of entropy ?

  1. First Law
  2. Zeroth Law
  3. Third Law
  4. Second Law

Q.18:- Ionization energy of Nitrogen is greater than that of Oxygen because Nitrogen has ? [SSC Exams 2013]

  1. High bond dissociation energy
  2. Smaller atomic radius
  3. Stable half-filled 2p sub level
  4. High nuclear charge

Q.19:- Which inorganic precipitate acts as semipermeable membrane ?

  1. Calcium Sulphate
  2. Barium Oxide
  3. Nickel Phosphate
  4. Copper Ferrocyanide

Q.20:- A solution is ? [SSC Exam 2014]

  1. A homogenous mixture of two or more substances
  2. A solid dissolved in a liquid
  3. A solid dissolved in water
  4. A mixture of two liquids
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Q.21:- When a solution is separated from a solvent by a semipermeable membrane then phenomenon taking place is called ?

  1. Osmosis
  2. Diffusion
  3. Plasmolysis
  4. None of the above

Q.22:- Eosin used to detect the end point of precipitation titration by adsorption is called ?

  1. Absorption indicator
  2. Adsorption indicator
  3. Normal indicator
  4. Chemical indicator

Q.23:- A photochemical reaction is ?

  1. Catalysed by light
  2. Initiated by light emission
  3. Accompanied with light
  4. Accompanied with absorption of light

Q.24:- Asbestos is a silicate mineral of calcium and ?

  1. K
  2. Al
  3. Ba
  4. Mg

Q.25:- In contact process, the gas produced is ? [SSC Exam 2013]

  1. Nitric Oxide
  2. Nitrous Oxide
  3. Sulphur Trioxide
  4. Ammonia

 

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