(C) Ca2+,K+,Ar,Cl−,S2− all species have 18 electrons that's why these are isoelectronic species. (E) Radius order Cs>Rb>K>Na>Li
Which of the following statements are true? A. Unlike Ga that has a very high melting point, Cs has a very low melting point. B. On Pauling scale, the electronegativity values of N and Cl are not the same. C. Ar,K+,Cl−,Ca2+, and S2− are all isoelectronic species. D. The correct order of the first ionization enthalpies of Na,Mg,Al, and Si is Si>Al>Mg>Na. E. The atomic radius of Cs is greater than that of Li and Rb . Choose the correct answer from the options given below
Held on 30 Apr 2025 · Verified 9 Jul 2026.
A, B and E only
C and E only
C and D only
A, C and E only
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Which of the following is the most electronegative element?
Given below are two statements: Statement I : Like nitrogen that can form ammonia, arsenic can form arsine. Statement II : Antimony cannot form antimony pentoxide. In the light of the above statements, choose the most appropriate answer from the options given below:
The correct order of the wavelength of light absorbed by the following complexes is, A. $\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}$ B. $\left[\mathrm{Co}(\mathrm{CN})_6\right]^{3-}$ C. $\left[\mathrm{Cu}\left(\mathrm{H}_2 \mathrm{O}\right)_4\right]^{2+}$ D. $\left[\mathrm{Ti}\left(\mathrm{H}_2 \mathrm{O}\right)_6\right]^{3+}$ Choose the correct answer from the options given below:
Match List - I with List - II $\begin{array}{llll} & \text{List-I} & & \text{List-II} \\A. & \mathrm{XeO}_3 & I. & \mathrm{sp}^3 \mathrm{~d}, \text{linear} \\B. & \mathrm{XeF}_2 & II. & \mathrm{sp}^3 ; \text{pyramidal} \\C. & \mathrm{XeOF}_4 & III. & \mathrm{sp}^3 \mathrm{~d}^3 ; \text{distorted octahedral} \\D. & \mathrm{XeF}_6 & IV. & \mathrm{sp}^3 \mathrm{~d}^2 ; \text{square pyramidal}\end{array}$ Choose the correct answer from the options given below:
Which among the following electronic configurations belong to main group elements? A. $[\mathrm{Ne}] 3 \mathrm{~s}^1$ B. $[\operatorname{Ar}] 3 \mathrm{~d}^3 4 \mathrm{~s}^2$ C. $[\mathrm{Kr}] 4 d^{10} 5 s^2 5 p^5$ D. $[\mathrm{Ar}] 3 \mathrm{~d}^{10} 4 \mathrm{~s}^1$ E. $[R n] 5 f^0 6 d^2 7 s^2$ Choose the correct answer from the option given below:
Work through every NEET UG Inorganic Chemistry PYQ, year by year.