The complex compound formed by the combination of two elements with a large electronegativity difference…
The complex compound formed by the combination of two elements with a large electronegativity difference is likely to…
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The complex compound formed when aluminum dissolves in aqueous sodium hydroxide is
The complex compound formed when aluminum dissolves in aqueous sodium hydroxide is A. Na3Al(OH)4. B. NaAl(OH)4 C. NaAl(OH)3…
Which of the following elements is a metalloid?
Which of the following elements is a metalloid? A. Carbon B. Oxygen C. Silicon D. Sodium Correct Answer:…
The shape of a graphite crystal is
The shape of a graphite crystal is A. tetrahedral B. pyramidal C. hexagonal D. octahedral Correct Answer: Option…
The d-block elements are paramagnetic because they
The d-block elements are paramagnetic because they A. contain paired electrons which are repelled by magnetic field B.…
The atomic radii of metals are usually
The atomic radii of metals are usually A. greater than their ionic radii B. equal to their ionic…
Two elements, X and Y are in the same group on the periodic table because…
Two elements, X and Y are in the same group on the periodic table because they both have…
Which of the following electron configurations represents that of an atom in its ground state?
Which of the following electron configurations represents that of an atom in its ground state? A. 1s 22s12p1…
Which of the following ions has an electron configuration different from the other?
Which of the following ions has an electron configuration different from the other? A.17CI– B.8O2- C.12Mg2+ D.13AI3+ Correct…