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Chemistry Quiz
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Of the following elements, which one has the highest electronegativity?
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Which one of the following ions has the lowest magnetic moment?
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Which element exhibits both +1 or +3 oxidation states in its compounds?
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What is the total number of p electrons in a single phosphorus atom in its ground state?
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The set representing the correct order of the first ionization potential is:
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Which of the following is not an actinide?
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Which of the following is the strongest base?
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Which metal requires the least energy to exhibit the photoelectric effect?
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Which of the following element belongs to the representative group of the periodic table?
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Lattice energy of an ionic compound depends upon:
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The metalloid among the following group of elements is:
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What is the number of unpaired electrons in a Manganese atom(25) in its lowest energy state?
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Identify the least stable ion amongst the following
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Select the correct order of ionic radii
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How many unpaired electrons are in a gaseous Fe2+ ion in its ground state?
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According to modern periodic law, variations in the properties of elements are related to their
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An element having atomic number 56 belongs to which block?
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Which of the following has highest atomic radius?
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Which electronic configuration of neutral atom will have the highest first ionization potential?
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If the atomic number of an element is 33, it will be placed in the periodic table in the
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Select the correct order of Ionization energy.
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Of the element given, which has the lowest ionization energy?
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Which of the following has maximum ionization enthalpy?
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Which of the following pair of atomic numbers represents s-block elements?
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The outer electronic configuration of most electronegative element is
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Which of the following ion has the largest radius?
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The specific heat of metal is 0.16, its approximate atomic weight would be
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Aluminium is used as reducing agent in the reduction of
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In which of the following metallurgy, no reducing agent is required from outside?
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Copper is extracted from sulfide ore using this method
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The element which is recovered from the electrolytic process is
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Chromium is obtained by reducing concentrated Chromite ore with
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Rutile is separated from chalcopyrite by
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Three most occurring elements into the earth crust are
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The metal which mainly occurs as oxide ore in nature is
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Which one of the following is not an ore of Aluminium?
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If a metal has low oxygen affinity then purification of metal may be carried out by
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In the alumino-thermite process, Al acts as
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The process of isolation of a metal by dissolving the ore in suitable reagent followed by precipitation of metal by a more electropositive metals is called
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The equivalent weight of calcium phosphate Ca3(PO4)2 is (Mol. wt. 310)
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Which of the following compounds has a negative enthalpy solution?
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Among the sodium halide, NaF has the highest melting point because of
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The second ionization potential of elements is higher than its second ionization potential because
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The second ionization energy is maximum for
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The period number and group number of Tantalum (z=73) are respectively
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Zinc and Cadmium metals do not show variable oxidation states because
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Which element is named after the name of a planet?
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According to modern periodic law, the properties of elements repeat at regular intervals when elements are arranged in order of
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The nucleus of an element contains 9 protons. Its valency would be
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The atomic numbers of metallic and non-metallic elements which are liquid at room temperature are
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The number of element present in fifth period is
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Which of the following statements is incorrect about the adsorption theory?
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Quantum yield is related to...........
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Which of the following is used as a catalytic promoter?
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Zincification involves ........................metal.
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In which of the following combinations of galvanic cells, the rate of corrosion of magnesium is highest in
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Rusting of iron is an example of
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Dry cell is an example of
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In galvanic series, Which metals are most passive?
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Rusting of Iron is enhanced by
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