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Chemistry Quiz
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Which one of the following ions has the lowest magnetic moment?
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Which element can exhibit more than one oxidation state in 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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Select the correct order of ionic radii
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What is the formula for the basic anhydride of Ba(OH)2?
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Which elements exhibit the greatest number of oxidation states in its compounds?
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Which one of the following is amphoteric oxide?
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The oxidation state of Cr in potassium dichromate and potassium chromate respectively, are:
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Which set of orbitals is listed in the sequential order of filling in a multi-electron atom?
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Identify the least stable ion amongst the following
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Which of the following is the smallest cation?
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Which property of an element is most dependent on the shielding effect?
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Eka-aluminum and eka-silicon are known as:
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The most electronegative element is
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Which of the following is isoelectronic with carbon atom?
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Select the correct order of Ionization energy.
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Which orbital fills completely immediately before 4f?
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Which relationship between the radii of these species is correct?
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Which of the following has the lowest ionization energy?
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Which of the following has the largest atomic size?
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The electron with strong electropositive nature is
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Which of the following ion has the largest radius?
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What type of atoms do carbohydrates contain
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The vapour density of a gas is 22. Its molecular weight will be.........
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If the equivalent weight of a trivalent metal is 32.7, the molecular weight of its chloride is
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The law of reciprocal proportions can be used to determine.......
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Which one of the following pairs of compounds illustrates the law of multiple proportions?
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Aluminium is used as reducing agent in the reduction of
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Chromium is obtained by reducing concentrated Chromite ore with
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The most abundant metal in earth crust is
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The ore which is concentrated by wetting oil is
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Chemical leaching is useful in the concentration of
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Which one of the following is not a method of concentration of ore?
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Froth flotation process for the concentration of sulfide ores is an illustration of the practical application of
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The metal which mainly occurs as oxide ore in nature is
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The two most abundant metals in the earth crust are
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Which one of the following types of metals is expected to occur in the native state?
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Which one contains both Calcium and Magnesium
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In the alumino-thermite process, Al acts as
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The percentage of P2O5 in diammonium phosphate (NH4)2HPO4 is
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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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Which of the following compound has a positive enthalpy of solution?
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Born Haber cycle can be used to estimate
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The element having a very high ionization potential but zero electron affinity is
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The second ionization potential of elements is higher than its second ionization potential because
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Ionization enthalpy of an atom is equal to
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The ionization energy will be higher when the electron is removed from
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Elements having highest ionization potential value is
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Which of the following pair of elements belongs to the same period?
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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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Transition metals are not characterized by
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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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Dry corrosion is
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Corrosion is accelerated by.....
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which one of the following elements shows both positive and negative oxidation state?
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