Thursday 8 October 2015

ECAT Chemistry Sample Test Preparation 2015-2016


 


CHEMISTRY (Questions 1-30)


Each question has four possible answers.

  • The large molecules which are formed by the monomers are called as:

 a ) Micro molecules b ) macro-molecules c ) both a & b d)none

  • Macro molecules are classified into: 

a ) organic b ) inorganic c)both a&b d)None

  • Organic macro molecules are classified into:

 a ) bio polymers b ) synthetic polymers c ) both a & b d ) None

  • Which is not a bio polymer is:

 a ) Lipids b ) Proteins c ) carbohydrates d ) None of these

  • The other name for cross linked polymersis:

a ) Linear polymer b ) Branched polymer c ) inter connected polymers d ) None of these

  • A polymer may be: 

a ) Linear b ) branched c ) cross linked d ) All of these

  • In macro molecules DP stands for:

 a ) Dissociation parameter b ) Dissociation polymer c ) Degree of polymerization d ) None of these

  • Molecular-mass of polymer = Md. Mass of monomwer X and Y the Y is 

a ) 1000 b ) 1 c)D.P d ) All of these

  • A polymer may be: 

a ) Homopolymer b ) Co-polymer c ) Teropolymer d ) All of these


  • The polymers wh ich can be re so It en again & again are called resoffen: 

a )Thermoplastic b ) Thermostating c)both a&b d ) none

  • The polymers which ca n not be resoffen again & again are called:

 a )Thermoplastic Thermosetting  b ) Thermosetting  c) CH  d ) none of these


  • (CH'2'0)n is general formula for: 

a ) monosaccharides b ) Oligosaccharides c ) Polysaccharides d ) None of these


  • Monosaccharides are: 

a ) Aldoses   b)ketoses  c)both a&b   d ) none

  • Which polymerization is free radical mechanism biased 

a ) Addition b ) Condensation c)both a&b d ) None


  • The temp & pressure use for PVC polymerization is:


 a ) 10 °C & 1 0 atm b)20°C&20atm c)52°C&9atm d)lOO°C&lOatm


  • The general formula for carbohydrate is:


c)Either a&b d ) None of these

  • Monosaccharides and oligosaccharides are generally called as

a ) Crystals b ) Sugars c ) Liquids d ) Non-Sugars


  • Polysaccharid es are also called 

a ) Crystals b ) Sugars c ) Liquids d ) Non-Sugars

  • Glycogen is stored in: 

c ) Soil . d ) None of these .


  • C-D-glucose is a monomer for .

 a ) Starch . b ) Cellulose . c ) Glycogen . d ) Proteins .

  • ,B D-glucose is a monomer for .

a ) starch . b ) Cellulose . ~ c ) Glycogen . d ) Protein

  • A high molecular weight organic materials, which upon hydrolysis give amino acid is called: . 

a)Fats .    b ) Proteins .    c ) carbohydrates .    d ) None of these .

  •  Proteins are classified into:

 a ) Simple protein b ) Complex proteins . c ) Derived proteins . d ) All of these .

  • The protein which only yield amino acids and their derivatives:


| b ) Complex proteins c ) Derived proteins I d ) All of these

  • When a protein is attached with a non-proteins I group that non-proteinic group is called:

 a ) activator | b ) Macro proteins | c ) Prosthetic | d ) None

  • The protein which is derived by conjugate proteins I are called as: 

a ) Simple proteins | b ) Complex proteins | c ) derived proteins | d ) None

  • Proteins may have: 

| a ) Primary structure | b ) Secondary structure | c ) Tertiary structure d ) All of these

  • The three dimensional folding and twisting of a pole I peptide chain give rise to: 

a ) Primary structure b ) Secondary structure c ) Tertiary structure d ) All of these

  • Ester of fatty acids with glycerol are: 

a ) Simple lipids b ) Complex lipids c ) derived lipids d ) None


  • Sterols, vitamin D and terpenes belong to 

a ) Simple lipids b ) Complex lipids c ) derived lipids d)None



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