In the periodic table, the element with atomic number 16 will be placed
In the periodic table, the element with atomic number 16 will be placed in the group Options (a) third (b)…
7 years ago
Memory
The electronegativity of the following elements increases in the order.
The electronegativity of the following elements increases in the order Options (a) C, N, Si ,P (b) N, Si, C,…
7 years ago
In which one of the following molecules the central atom does not have sp³
In which one of the following molecules the central atom does not have sp³ hybridization? Options (a) NH₄⁺ (b) CH₄…
7 years ago
The screening effect of d-electrons is
The screening effect of d-electrons is Options (a) equal to that of p-electrons (b) more than that of p-electrons (c)…
7 years ago
Electric configuration of chalcogens in their outermost orbit is
Electric configuration of chalcogens in their outermost orbit is Options (a) s²p³ (b) s²p⁴ (c) s²p⁵ (d) s²p⁶ Correct Answer:…
7 years ago
There is no S – S bond in
There is no S - S bond in Options (a) S₂O₄²⁻ (b) S₂O₅²⁻ (c) S₂O₃²⁻ (d) S₂O₇²⁻ Correct Answer: S₂O₇²⁻Explanation:No…
7 years ago
The correct order of the decreasing ionic radii among the following isoelectronic
The correct order of the decreasing ionic radii among the following isoelectronic species are : Options (a) Ca²⁺ > K⁺…
7 years ago
The solubility of anhydrous AlCl₃ and hydrous AlCl₃ in diethylether are S₁
The solubility of anhydrous AlCl₃ and hydrous AlCl₃ in diethylether are S₁ and S₂ repectively. Then Options (a) S₁ =…
7 years ago
If electron has spin quantum number +1/2 and magnetic quantum number –1,it cannot
If electron has spin quantum number +1/2 and magnetic quantum number -1, it cannot be present in Options (a) d-orbital…
7 years ago
If r is the radius of the first orbit, the radius of nth-orbit of H-atom is given
If r is the radius of the first orbit, the radius of nth-orbit of H-atom is given by Options (a)…
7 years ago