Match the following aspects with the respective metal. Aspects Metal (a) The metal which reveals a maximum number of oxidation states (i) Scandium (b) The metal although placed in 3d block is considered not as a transition element (ii) Copper (c) The metal ...
Three elements X, Y and Z are in the 3rd period of the periodic table. The oxides of X, Y and Z, respectively, are basic, amphoteric and acidic. The correct order of the atomic numbers of X, Y and Z is: (1) X < Y < Z (2) Z < Y < X (3) X < Z < Y (4) Y < X < Z
Two elements A and B have similar chemical properties. They don't form solid hydrogencarbonates, but react with nitrogen to form nitrides. A and B, respectively, are : (1) Li and Mg (2) Na and Ca (3) Na and Rb (4) Cs and Ba
Match the element in column I with that in column II. Column I Column II (a) Copper (i) Non-metal (b) Fluorine (ii) Transition Metal (c) Silicon (iii) Lanthanoid (d) Cerium (iv) Metalloid Identify the correct match : (1) (a)-(i) (b)-(ii) (c)-(iii) (d)-(iv) ...
In general, the property (magnitudes only) that shows an opposite trend in comparison to other properties across a period is : (1) Electronegativity (2) Electron gain enthalpy (3) Ionization enthalpy (4) Atomic radius
The element Z = 114 has been discovered recently. It will belong to which of the following family/group and electronic configuration? (a) Carbon family, [Rn] 5f14 6d10 7s2 7p2 (b) Oxygen family, [Rn] 5f14 6d10 7s2 7p4 (c) Nitrogen family, [Rn] 5f14 6d10 7s2...
In general, the properties that decrease and increase down a group in the periodic table, respectively, are : (1) electronegativity and electron gain enthalpy. (2) electronegativity and atomic radius. (3) atomic radius and electronegativity. (4) electron ...
For the second period elements the correct increasing order of first ionisation enthalpy is: (1) Li < Be < B < C < N < O < F < Ne (2) Li < B < Be < C < O < N < F < Ne (3) Li < B < Be < C < N < O < F < Ne (4) Li < Be < B < C < O < N < F < Ne
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