General Knowledge Questions Answer GK Quiz

GK General Knowledge - Chemistry Question Answer Quiz

Q. The incomplete burning of petrol and diesel produces -
1) nitric oxide
2) nitrogen dioxide
3) carbon dioxide
4) carbon monoxide

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Q. Lime water is turned milky by -
1) CO
2) CO2
3) O2
4) O3

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Q. The breath test conducted by police to check drunken driver has which one of the following on the filter paper?
1) Potassium dichromate-sulfuric acid
2) Potassium permanganate-sulfuric add
3) Silica gel coated with silver nitrate
4) Turmeric

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Q. Consider the following statement :
Atomic number of an element is a more fundamental property than its atomic mass.Who among the following scientists has made the above statement?

1) Dmitri Mendeleev
2) Henry Moseley
3) J.J. Thomson
4) Ernest Rutherfod

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Q. Employing Chromatography, one cannot separate -
1) radio-isotopes
2) colours from a dye
3) pigments from a natural colour
4) drugs from blood

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Q. Soap solution used for cleaning purpose appears cloudy. This is due to the fact that soap micelles can
1) refract light
2) scatter light
3) diffract light
4) polarise light

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Q. In graphite, each carbon atom is bonded to three other carbon atoms -
1) forming a three-dimensional structure
2) in the same plane giving a hexagonal array
3) in the same plane giving a square array
4) in the same plane giving a pentagonal array

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Q. Which one of the following is monatomic?
1) Hydrogen
2) Sulphur
3) Phosphorus
4) Helium

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Q. Which one of the following statements is not correct?
1) Elements are defined by the number of protons they possess.
2) Isobars are atoms having the same atomic number but different mass number.
3) The mass number of an atom is equal to the number of nucleons in its nucleus.
4) Valency is the combining capacity of an atom.

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Q. Which one of the following is essential in corrosion of iron metal?
1) Oxygen only
2) Oxygen and moisture
3) Hydrogen only
4) Hydrogen and moisture

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