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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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Select the correct order of electronegativity(E.N)
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The outer electronic configuration of K, Cu, and Cr are, respectively.
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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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Which of the following is not an actinide?
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Which of the following has the highest electron affinity?
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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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The oxidation state of Cr in potassium dichromate and potassium chromate respectively, are:
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Lattice energy of an ionic compound depends upon:
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Alkali metals in each period have:
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Which shows the highest lattice energy?
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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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Which of the following is the smallest cation?
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Select the correct order of ionic radii
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Which of the following molecule has higher lattice energy?
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Eka-aluminum and eka-silicon are known as:
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Which of the following does not reflect the periodicity of elements?
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Which among the following element has the lowest value of ionization energy?
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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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Ce(58) is a member of
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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 of the following has maximum ionization enthalpy?
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Which of the following has the largest atomic size?
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Which ion is not isoelectronic with O²-?
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Which of the following ion has the largest radius?
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A metallic oxide contains 66% of the metal. The equivalent weight of the metal is
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The vapour density of a gas is 22. Its molecular weight will be.........
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The law of reciprocal proportions can be used to determine.......
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Silica is added to roasted copper ore during extraction in order to remove
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Chromium is obtained by reducing concentrated Chromite ore with
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Chemical leaching is useful in the concentration of
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Haematite ore is concentrated by
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Cinnabar is an ore of
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Which one contains both Calcium and Magnesium
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Highly electropositive metals can not be commercially extracted from carbon reduction process at high temperature because these
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The amount of zinc (atomic weight 65) required to produce 224ml of H2 at STP on treatment with dilute H2SO4 will be
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The equivalent weight of calcium phosphate Ca3(PO4)2 is (Mol. wt. 310)
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The formula of metallic hydroxide (eq. wt. = 150) is M(OH)2. x. H2O. If the atomic weight of the metal is 176 then, the value of x will be
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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 second ionization energy is maximum for
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Elements having highest ionization potential value is
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Which of the following metals is the highest electropositive in nature?
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Which of the following pair of elements belongs to the same period?
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Which of the following is not a representative element?
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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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Sodium generally does not show an oxidation state of +2, because of its
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The nucleus of an element contains 9 protons. Its valency would be
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In the periodic table, the metallic character of elements shows one of the following trend
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The number of element present in fifth period is
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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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During electro galvanizing technique, which metal is used to protect steels against corrosion?
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Dry corrosion is
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which one of the following elements shows both positive and negative oxidation state?
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