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1 / 60
Which element exhibits both +1 or +3 oxidation states in its compounds?
2 / 60
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 elements exhibit the greatest number of oxidation states in its compounds?
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Which of the following set is of coinage metal?
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Which one of the following is amphoteric oxide?
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Alkali metals in each period have:
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The metalloid among the following group of elements is:
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What is the total number of the valence electrons in the peroxydisulphate ion?
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Identify the least stable ion amongst the following
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The element with highest ionization potential from the following is
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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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Which of the following molecule has higher lattice energy?
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An element having atomic number 56 belongs to which block?
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An element of atomic number 29 belongs to
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Aluminum is diagonally related to
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The correct order of atomic radii is
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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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Which of the following has the lowest ionization energy?
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Which of the following has the largest radius?
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The electron with strong electropositive nature is
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In REDOX reaction, the oxidizing agent:
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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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The ratio of the rates of diffusion of a given element to that of helium is 4. What will be the molecular weight of the element?
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The modern atomic weight scale is based on.........
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Aluminium is used as reducing agent in the reduction of
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Silica is added to roasted copper ore during extraction in order to remove
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Copper is extracted from sulfide ore using this method
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Extraction of aluminum from bauxite ore reduction is carried out by
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A mineral is usually associated with a large amount of unwanted material called
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Which one of the following elements is most abundant in the earth crust?
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Which one of the following materials does not contain iron?
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Cinnabar is an ore of
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Which one of the following is not an ore of Aluminium?
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The amount of energy released when an electron is added to its outermost shell of an atom is called
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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 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 anion has the smallest radius?
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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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Choose the correct statement regarding the transition elements.
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According to modern periodic law, the properties of elements repeat at regular intervals when elements are arranged in order of
51 / 60
Sodium generally does not show an oxidation state of +2, because of its
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Transition metals are not characterized by
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Cold light is emitted in
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When Pt and Zn are electrically connected, which one gets corroded?
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Rusting of iron is an example of
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The type of corrosion that is very dangerous and difficult to monitor is
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Dry cell is an example of
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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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