Header Ads

Chemistry Test - 4

  • 1.
    Which of the following is caused by the higher concentration of Nitrogen and Phosphorous?

    a 
    Eutrophication
    b 
    Hardness
    c 
    Alkalinity
    d 
    Acidity

    Explanation:
    Subject: 
    GENERAL SCIENCE
    45.45% users answered right
    Correct Answer: a
    Comment · 0 · 
  • 2.
    Earth`s atmosphere is an envelope of gases extending to a height of

    a 
    100 km
    b 
    150 km
    c 
    200 km
    d 
    300 km

    Explanation:
    Subject: 
    GENERAL SCIENCE
    11.11% users answered right
    Correct Answer: c
    Comment · 0 · 
  • 3.

    The main source of carbon monoxide is

    a 
    Industrial process
    b 
    Fuel combustion
    c 
    Transportation
    d 
    Solid waste disposal
     

    Explanation:
    Subject: 
    GENERAL SCIENCE
    60.00% users answered right
    Correct Answer: b
    Comment · 0 · 
  • 4.
    The chemical used for cloud seeding for artificial rains is

    a 
    Silver Nitrate
    b 
    Potassium Bromide
    c 
    Silver Iodide
    d 
    Potassium Nitrate

    Explanation:
    Subject: 
    GENERAL SCIENCE
    66.67% users answered right
    Correct Answer: c
    Comment · 0 · 
  • 5.
    Which of the following is a method/process of disposing of solid waste which cannot be reused or recycled?

    a 
    Landfills
    b 
    Incineration
    c 
    Pyrolysis and Gasification
    d 
    All the above

    Explanation:
    Subject: 
    GENERAL SCIENCE
    30.00% users answered right
    Correct Answer: d
    Comment · 0 · 
  • 6.
    Hard water and soft water can be distinguished by using

    a 
    dilute acid
    b 
    ordinary soap
    c 
    detergent
    d 
    liquid soap

    Explanation:
    Subject: 
    GENERAL SCIENCE
    0.00% users answered right
    Correct Answer: c
    Comment · 0 · 
  • 7.
    The oxidation number of nickel in K4[Ni(CN)4] is

    a 
    Zero
    b 
    +4
    c 
    -4
    d 
    +8

    Explanation:
    Subject: 
    GENERAL SCIENCE
    12.50% users answered right
    Correct Answer: a
    Comment · 0 · 
  • 8.
    The unit to measure the flow of water is

    a 
    Micro Mho
    b 
    Ohm meter
    c 
    Milli curie
    d 
    Cusecs

    Explanation:
    Subject: 
    GENERAL SCIENCE
    50.00% users answered right
    Correct Answer: d
    Comment · 0 · 
  • 9.
    Sulphur dioxide level in the atmosphere can be reduced by using

    a 
    more efficient car engines
    b 
    catalytic converters in industry
    c 
    static electricity to attract it in factory chimneys
    d 
    low – sulphur fuels

    Explanation:
    Subject: 
    GENERAL SCIENCE
    28.57% users answered right
    Correct Answer: d
    Comment · 0 · 
  • 10.
    Benzene cannot undergo;

    a 
    Substitution
    b 
    Addition
    c 
    Elimination
    d 
    Oxidation

    Explanation:
    Subject: 
    GENERAL SCIENCE
    25.00% users answered right
    Correct Answer: c
    Comment · 0 · 
  • 11.
    Which among the following is found in chlorophyll?

    a 
    Ca2+
    b 
    Mg2+
    c 
    Fe2+
    d 
    Al3+

    Explanation:
    Subject: 
    GENERAL SCIENCE
    71.43% users answered right
    Correct Answer: b
    Comment · 0 · 
  • 12.
    The polymer obtained by the condensation of hexamethylene diamine and adipic acid is:

    a 
    Nylon 66
    b 
    Terylene
    c 
    Tollen`s
    d 
    Bakelite

    Explanation:
    Subject: 
    GENERAL SCIENCE
    57.14% users answered right
    Correct Answer: a
    Comment · 0 · 
  • 13.
    In organic compounds, nitrogen is estimated by

    a 
    Carius method
    b 
    Victor-Meyer`s method
    c 
    Liebig`s method
    d 
    Duma`s method 

    Explanation:
    Subject: 
    GENERAL SCIENCE
    12.50% users answered right
    Correct Answer: d
    Comment · 0 · 
  • 14.

    The hottest part of the gas flame known as

    a 
    blue zone
    b 
    non-luminous zone
    c 
    luminous zone
    d 
    dark zone
     

    Explanation:
    Subject: 
    GENERAL SCIENCE
    33.33% users answered right
    Correct Answer: b
    Comment · 0 · 
  • 15.

    The orientation of an atomic orbital is governed by

    a 
    principal quantum number
    b 
    magnetic quantum number
    c 
    spin quantum number
    d 
    azimuthal quantum number
     

    Explanation:
    Subject: 
    GENERAL SCIENCE
    16.67% users answered right
    Correct Answer: b
    Comment · 0 · 
  • 16.
    What is the second largest component in milk?

    a 
    Fat
    b 
    Minerals
    c 
    Water
    d 
    Sugar

    Explanation:
    Subject: 
    GENERAL SCIENCE
    75.00% users answered right
    Correct Answer: a
    Comment · 0 · 
  • 17.
    I f the sewage is fully oxidized, the nitrogen is in the form of

    a 
    Nitrites
    b 
    Ammonia
    c 
    Nitramines
    d 
    Nitrates

    Explanation:
    Subject: 
    GENERAL SCIENCE
    0.00% users answered right
    Correct Answer: d
    Comment · 0 · 
  • 18.
    The fat of a common mussel-secretes a sticky glue that can be used to make heart implants. The unique chemical compound present in the glue is:

    a 
    Amino phenyl alanine
    b 
    Hydroxy phenyl alanine   
    c 
    Phenyl  alanine
    d 
    Dihydroxy phenyl alanine

    Explanation:
    Subject: 
    GENERAL SCIENCE
    0.00% users answered right
    Correct Answer: d
    Comment · 0 · 
  • 19.
    Nitrogen is an essential constituent of all:

    a 
    Fats
    b 
    Proteins
    c 
    Vitamins
    d 
    Carbohydrates

    Explanation:
    Subject: 
    GENERAL SCIENCE
    71.43% users answered right
    Correct Answer: b
    Comment · 0 · 
  • 20.
    When a metal is heated in a flame, the electrons absorb energy state. On coming back to the lower energy state,  they emit light, which we can observe in

    a 
    Raman spectra
    b 
    Absorption spectra
    c 
    Emission spectra
    d 
    Fluorescence

    Explanation:
    Subject: 
    GENERAL SCIENCE
    50.00% users answered right
    Correct Answer: c
    Comment · 0 · 
  • 21.

    The percentage of nitrogen present in ammonium sulphate is:

    a 
    21%
    b 
    25%
    c 
    30.5%
    d 
    18%
     

    Explanation:
    Subject: 
    GENERAL SCIENCE
    50.00% users answered right
    Correct Answer: a
    Comment · 0 · 
  • 22.
    Which one of the following has greatest mass?

    a 
    electron
    b 
    proton
    c 
    neutron
    d 
    hydrogen nucleus

    Explanation:
    Subject: 
    GENERAL SCIENCE
    28.57% users answered right
    Correct Answer: c
    Comment · 0 · 
  • 23.


    The antiseptic compound present in dettol is

    a 
    Iodine
    b 
    chloroxylenol
    c 
    Biothinal
    d 
    Cresol
     

    Explanation:
    Subject: 
    GENERAL SCIENCE
    33.33% users answered right
    Correct Answer: b
    Comment · 0 · 
  • 24.
    Glass is soluble in

    a 
    H2SO4
    b 
    HCIO4
    c 
    HNO3
    d 
    HF

    Explanation:
    Subject: 
    GENERAL SCIENCE
    50.00% users answered right
    Correct Answer: d
    Comment · 0 · 
  • 25.
    When Arsenic atoms are added to Germanium lattice, it becomes a/an

    a 
    Insulator
    b 
    Superconductor
    c 
    Intrinsic semiconductor
    d 
    Extrinsic semiconductor

    Explanation:
    Subject: 
    GENERAL SCIENCE
    20.00% users answered right
    Correct Answer: d
    Comment · 0 · 
  • 26.
    Exposure to mixtures of chemicals are greater than expected on the basis of effects of exposure to each chemical individually. This is known as

    a 
    Activities
    b 
    Antagonism
    c 
    Synergism
    d 
    Independent

    Explanation:
    Subject: 
    GENERAL SCIENCE
    0.00% users answered right
    Correct Answer: c
    Comment · 0 · 
  • 27.
    The filter over which sewage is sprinkled is called as

    a 
    Trickling filter
    b 
    percolating filter
    c 
    Contact bed
    d 
    Intermediate sand filter

    Explanation:
    Subject: 
    GENERAL SCIENCE
    0.00% users answered right
    Correct Answer: a
    Comment · 0 · 
  • 28.
    The effect or response produced by two or more chemicals are less than the sum of the effects or response that the chemical would produce individually is known as

    a 
    Antagonism
    b 
    Independent
    c 
    Additive
    d 
    Synergism

    Explanation:
    Subject: 
    GENERAL SCIENCE
    0.00% users answered right
    Correct Answer: a
    Comment · 0 · 
  • 29.
    Silicone is a polymer of

    a 
    Tetraalkyl silane
    b 
    Silicon tetrachloride
    c 
    Dialkyl dichloro silane
    d 
    Silane

    Explanation:
    Subject: 
    GENERAL SCIENCE
    20.00% users answered right
    Correct Answer: c
    Comment · 0 · 
  • 30.
    The presence of Cobalt in vitamin B12 was established for the first time by

    a 
    Hydrolysis test
    b 
    Spectroscopy
    c 
    Borax-Bead test
    d 
    Sodium Nitroprusside test

    Explanation:
    Subject: 
    GENERAL SCIENCE
    40.00% users answered right
    Correct Answer: b
    Comment · 0 · 
  • 31.
    Coating of solid waste with impervious material is known as

    a 
    Encapsulation
    b 
    Chemical fixation
    c 
    Landfill
    d 
    Capping

    Explanation:
    Subject: 
    GENERAL SCIENCE
    0.00% users answered right
    Correct Answer: a
    Comment · 0 · 
  • 32.
    Ultraviolet rays can be used in water treatment as

    a 
    Flocculator
    b 
    Polonium
    c 
    Thorium
    d 
    Uranium

    Explanation:
    Subject: 
    GENERAL SCIENCE
    16.67% users answered right
    Correct Answer: d
    Comment · 0 · 
  • 33.
    Sulphur dioxide bleaches colouring matter by;

    a 
      Reduction
    b 
    Dehydration
    c 
    Decomposition
    d 
    Oxidation

    Explanation:
    Subject: 
    GENERAL SCIENCE
    0.00% users answered right
    Correct Answer: a
    Comment · 0 · 
  • 34.
    Heating of a ore below its melting point in the absence of air is known as

    a 
    Refining
    b 
    Calculation
    c 
    Roasting
    d 
    Smelting

    Explanation:
    Subject: 
    GENERAL SCIENCE
    40.00% users answered right
    Correct Answer: b
    Comment · 0 · 
  • 35.
    The most electronegative element among the following is

    a 
    Fluorine
    b 
    Sodium
    c 
    Chloride
    d 
    Oxygen

    Explanation:
    Subject: 
    GENERAL SCIENCE
    71.43% users answered right
    Correct Answer: a
    Comment · 0 · 
  • 36.
    Mark the compound which possesses ionic, covalent and coordinate bonds.

    a 
    NH4Cl
    b 
    SO3
    c 
    SO2
    d 
    H2O

    Explanation:
    Subject: 
    GENERAL SCIENCE
    16.67% users answered right
    Correct Answer: a
    Comment · 0 · 
  • 37.
    A nibble is equal to _____ bits.

    a 
    32
    b 
    4
    c 
    8
    d 
    16

    Explanation:
    Subject: 
    GENERAL SCIENCE
    57.14% users answered right
    Correct Answer: b
    Comment · 0 · 
  • 38.
    Ionisation energy of nitrogen is greater than that of oxygen because nitrogen has

    a 
    high bond dissociation energy
    b 
    smaller atomic radius
    c 
    stable half filled 2p sub level
    d 
    high nuclear charge

    Explanation:
    Subject: 
    GENERAL SCIENCE
    50.00% users answered right
    Correct Answer: c
    Comment · 0 · 
  • 39.
    Sulphuric acid is

    a 
    monobasic
    b 
    dibasic
    c 
    tribasic
    d 
    tetrabasic

    Explanation:
    Subject: 
    GENERAL SCIENCE
    71.43% users answered right
    Correct Answer: b
    Comment · 0 · 
  • 40.
    Which one of the following group of gases contribute to the “Green House Effect”?

    a 
    Carbon dioxide and Methane
    b 
    Ammonia and ozone
    c 
    Carbon monoxide and sulphur dioxide
    d 
    Carbon tetraflouride and Nitrous oxide

    Explanation:
    Subject: 
    GENERAL SCIENCE
    57.14% users answered right
    Correct Answer: a
    Comment · 0 · 
  • 41.
    The degree of dissociation of an electrolyte depends on

    a 
    dilution
    b 
    impurities
    c 
    atmospheric pressure
    d 
    method of dissolution

    Explanation:
    Subject: 
    GENERAL SCIENCE
    16.67% users answered right
    Correct Answer: a
    Comment · 0 · 
  • 42.
    An example of heterocyclic compound is

    a 
    Naphthalene
    b 
    Furan
    c 
    Benzene
    d 
    Anthracene

    Explanation:
    Subject: 
    GENERAL SCIENCE
    16.67% users answered right
    Correct Answer: b
    Comment · 0 · 
  • 43.
    Natural rubber is a polymer of

    a 
    Vinyl acetate
    b 
    Propene
    c 
    Isoprene
    d 
    Styrene

    Explanation:
    Subject: 
    GENERAL SCIENCE
    40.00% users answered right
    Correct Answer: c
    Comment · 0 · 
  • 44.
    The gas involved in Bhopal incident was

    a 
    Hydrogen sulphide
    b 
    Nitrogen dioxide
    c 
    Methyl chloride
    d 
    Methyl isocyanide

    Explanation:
    Subject: 
    GENERAL SCIENCE
    71.43% users answered right
    Correct Answer: d
    Comment · 0 · 
  • 45.
    Acid rain is caused due to pollution of atmosphere by

    a 
    oxides of carbon and nitrogen
    b 
    oxides of nitrogen and sulphur
    c 
    oxides of nitrogen and phosphorous
    d 
    None of these
    Explanation:
    Subject: 
    GENERAL SCIENCE
    40.00% users answered right
    Correct Answer: b
    Comment · 0 · 
  • 46.
    The manufacture of iron from iron ore involves the process of

    a 
    oxidation
    b 
    reduction
    c 
    fractional distillation
    d 
    electrolysis

    Explanation:
    Subject: 
    GENERAL SCIENCE
    57.14% users answered right
    Correct Answer: b
    Comment · 0 · 
  • 47.
    Ferrous sulphate is used in water treatment as a/an

    a 
    Oxidizing agent
    b 
    Reducing agent
    c 
    Coagulant aid
    d 
    Adsorbent

    Explanation:
    Subject: 
    GENERAL SCIENCE
    20.00% users answered right
    Correct Answer: c
    Comment · 0 · 
  • 48.
    Suspension particles have the size between

    a 
    10-2 and 10-4cm
    b 
    10-5 and 10-7cm
    c 
    10-8 and 10-10cm
    d 
    10-1 and 10-2cm

    Explanation:
    Subject: 
    GENERAL SCIENCE
    20.00% users answered right
    Correct Answer: a
    Comment · 0 · 
  • 49.
    An element of atomic no.29 belongs to

    a 
    s-block
    b 
    d-block
    c 
    p-block
    d 
    f-block

    Explanation:
    Subject: 
    GENERAL SCIENCE
    60.00% users answered right
    Correct Answer: b
    Comment · 0 · 
  • 50.

    The gas used to extinguish fire is

    a 
    Neon
    b 
    Nitrogen
    c 
    Carbon dioxide
    d 
    Carbon monoxide
    Explanation:
    Subject: 
    GENERAL SCIENCE
    66.67% users answered right
    Correct Answer: c
    Comment · 0 ·