Chemistry set 1 MCQs

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Showing 504 questions
Q.31 The decomposition of gaseous Ammonia on a hot platinum surface is a ____ order reaction at high pressure.
A two
B zero
C three
D one
Discuss / Board
Q.32 What is the IUPAC name of tertiarybutyl alcohol?
A 2-Methylpropan-2-ol
B 1-propylpropan-3-ol
C 1-Methylpropan-3-ol
D 1-ethylpropan-3-ol
Discuss / Board
Q.33 Which of the following is a correct order of basicity for Group 1 hydroxides?
A LiOH > NaOH > KOH > CsOH
B LiOH > KOH > CsOH > NaOH
C KOH > CsOH >NaOH >LiOH
D CsOH > KOH >NaOH >LiOH
Discuss / Board
Q.34 Palladium on barium sulphate (Pd/BaSO4) is also known as:
A a Hillman reaction catalyst
B a Cannizzaro reaction catalyst
C the Rosenmund catalyst
D an aldol reaction catalyst
Discuss / Board
Q.35 Which of the following decomposition reactions is NOT a redox reaction?
A Decomposition of sodium bicarbonate
B Decomposition of sodium hydride
C Decomposition of potassium chlorate
D Decomposition of calcium carbonate
Discuss / Board
Q.36 An organic reaction used to convert an aryl diazonium salt into an aryl halide using a copper(I) halide catalyst is called:
A Finkelstein reaction
B Gattermann reaction
C Sandmeyer reaction
D Balz-Schiemann reaction
Discuss / Board
Q.37 Which of the following isotopes is used as fuel in nuclear reactors?
A Uranium-235
B Arsenic-74
C Carbon-14
D Sodium-24
Discuss / Board
Q.38 Identify a carbohydrate that is considered a 'deoxysugar' and does not fit the general formula Cx(H2O)y.
A Maltose
B Sucrose
C Fructose
D Rhamnose
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Q.39 Which of the following is an example of a 'solid in a liquid' type of solution?
A Tincture of iodine
B Vinegar
C Brass
D Bronze
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Q.40 Milk of magnesia is a suspension of ____ in water.
A magnesium oxalate
B magnesium hydroxide
C magnesium chlorate
D magnesium bromide
Discuss / Board
Q.41 What is the IUPAC name of the compound CH3NH2?
A Propan-1-amine
B Methanamine
C 2-Methyl propan-1-amine
D Ethanamine
Discuss / Board
Q.42 The reaction of an acid and a metal gives:
A Hydrogen gas and salt
B Carbon dioxide, salt and water
C Salt and water
D Carbon dioxide, salt and hydrogen gas
Discuss / Board
Q.43 Which of the following devices is used to accelerate charged particles to high velocities?
A cryotron
B copatron
C cosmotron
D cyclotron
Discuss / Board
Q.44 Which of the following contains small droplets of liquid or particles of solid dispersed in a gas?
A Gel
B Vapour
C Aerosol
D Foam
Discuss / Board
Q.45 Which of the following planets' atmosphere is made up of thick white and yellowish clouds of sulphuric acid?
A Venus
B Neptune
C Mars
D Jupiter
Discuss / Board
Q.46 Which scientist discovered the concept of atomic number through X-ray spectra in 1913?
A AEB de Chancourtois
B Dmitri Mendeleev
C Henry Moseley
D RA Millikan
Discuss / Board
Q.47 Why is the six membered cyclic structure of glucose called a pyranose structure?
A Pyran is a non-cyclic organic compound, with one oxygen atom and five carbon atoms in the ring.
B Pyran is a cyclic organic compound, with one oxygen atom and five carbon atoms in the ring.
C Furan is a five membered non-cyclic compound, with one oxygen and four carbon atoms.
D Furan is a five membered cyclic compound, with one oxygen and four carbon atoms.
Discuss / Board
Q.48 The method of separating a mixture of soluble solids by dissolving them in a suitable hot solvent and then lowering the temperature slowly is called:
A fractional crystallisation
B dephlegmation
C azeotropic distillation
D sublimation
Discuss / Board
Q.49 Which of the following statements best describes the Hardy Schulze rule?
A liquid mixture is proportional to its mole fraction in that mixture.
B The partial pressure of a component in
C This is applied to obtain a colloidal solution of metals such as gold, silver or platinum.
D The amount of electrolyte required for the coagulation of a definite amount of a colloidal solution is dependent on the valency of the coagulating ion.
Discuss / Board
Q.50 Which of the following reactions leads to the formation of glucose pentaacetate from acetic anhydride?
A Acetylation of glucose
B Oxidation
C Addition of ketone
D Reduction
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Q.51 In which of the following liquids would anthracene dissolve easily?
A Benzene
B Sodium chloride
C Methane
D Water
Discuss / Board
Q.52 Electrochemical cell is a device which converts chemical energy into electrical energy in a/an ____.
A oxidation reaction
B reduction reaction
C direct redox reaction
D indirect redox reaction
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Q.53 In 1960, which isotope was used to define the standard measure of length (the meter)?
A Krypton-86
B Krypton-88
C Krypton-83
D Krypton-90
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Q.54 In which year did Johannes Nicolaus Bronsted and Thomas Martin Lowry propose the fundamental concept of acids and bases?
A 1928
B 1921
C 1925
D 1923
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Q.55 Which non-essential amino acid is synthesised by the hydroxylation of phenylalanine in a reaction catalysed by phenylalanine hydroxylase?
A Glutamine
B Tyrosine
C Cysteine
D Glycine
Discuss / Board
Q.56 In which year did Robert Brown observe the zigzag movement of colloidal particles in solution?
A 1829
B 1826
C 1828
D 1827
Discuss / Board
Q.57 The liquid water present in oceans, lakes and rivers gets converted to the gaseous form in the presence of sunlight in the water cycle. This step is called:
A Condensation
B Melting
C Precipitation
D Evaporation
Discuss / Board
Q.58 Limestone is composed of:
A iron oxide
B sodium carbonate
C aluminium oxide
D calcium carbonate
Discuss / Board
Q.59 Which of the following gases is generally used to flush bags of chips by the manufacturers?
A Nitrogen
B Oxygen
C Compressed air
D Carbon dioxide
Discuss / Board
Q.60 What is the name of the process of organic matter being broken down into simpler compounds by decomposers?
A Respiration
B Fermentation
C Decomposition
D Photosynthesis
Discuss / Board

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