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Q. Statement-1 : F atom has a less negative electron gain enthalpy than Cl atom. Statement-2 : Additional electron is repelled more efficiently by 3p electron in Cl atom thanby 2p electron in F atom. (A)Statement-1 is true, statement-2 is true and statement-2 is correct explanation for statement 1.(B) Statement-1 is true, statement-2 is true and statement-2 is NOT the correct explanation forstatement‑1.(C) Statement-1 is true, statement-2 is false.(D) Statement-1 is false, statement-2 is true. [JEE 2000]
Q. The correct order of radii is:$(\mathrm{A}) \mathrm{N}<\mathrm{Be}<\mathrm{B}$(B) $\mathrm{F}^{-}<\mathrm{O}^{2-}<\mathrm{N}^{3-}$(C) $\mathrm{Na}<\mathrm{Li}<\mathrm{K}$$(\mathrm{D}) \mathrm{Fe}^{3+}<\mathrm{Fe}^{2+}<\mathrm{Fe}^{4+}$ [JEE 2000]
Q. The $\mathrm{IE}_{1}$ of Be is greater than that of B. [JEE 2001]
Q. The set representing correct order of $\mathrm{IP}_{1}$ is (A) K > Na > Li (B) Be > Mg > Ca (C) B > C > N (D) Fe > Si > C [JEE 2001]
Q. Identify the least stable ion amongst the following: (A) $\mathrm{Li}^{-}$(B) $\mathrm{Be}^{-}$(C) $\mathrm{B}^{-}$(D) $\mathrm{C}^{-}$ [JEE 2016]
Q. The increasing order of atomic radii of the following Group 13 elements is(A) Al < Ga < In < Tl(B) Ga < Al < In < Tl(C) Al < In < Ga < Tl(D) Al < Ga < Tl < In [JEE 2016]
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Sol. (B)Increasing order of atomic radii: Ga < Al < In < TlGa is smaller due to poor shielding of d-orbital
Q. The option(s) with only amphoteric oxides is(are) :(A) $\mathrm{Cr}_{2} \mathrm{O}_{3}, \mathrm{BeO}, \mathrm{SnO}, \mathrm{SnO}_{2}$(B) $\mathrm{Cr}_{2} \mathrm{O}_{3}, \mathrm{CrO}, \mathrm{SnO}, \mathrm{PbO}$(C) $\quad \mathrm{ZnO}, \mathrm{Al}_{2} \mathrm{O}_{3}, \mathrm{PbO}, \mathrm{PbO}_{2}$(D) $\mathrm{NO}, \mathrm{B}_{2} \mathrm{O}_{3}, \mathrm{PbO}, \mathrm{SnO}_{2}$ [JEE 2017]
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Sol. (A,C)$\mathrm{BeO}, \mathrm{Al}_{2} \mathrm{O}_{3}, \mathrm{SnO}, \mathrm{PbO}, \mathrm{Cr}_{2} \mathrm{O}_{3}, \mathrm{SnO}_{2}, \mathrm{PbO}_{2}$ are amphoteric oxides.CrO is basic oxide , $\mathrm{B}_{2} \mathrm{O}_{3}$ is acidic oxide, NO is Neutral oxide
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Good and Thanks ,,,, But it would be better if there were some more questions ..Thanks
Again questions are not there
Thanks..
Children while you are studying you should also learn how to clean toilet as if u fail it may be useful to get a job
wtf
Thank u for this✨✨✨✨✨😊
Thanks sir
Hi
Thanks sir
Really appreciate the effort of urs in collecting the questions and providing this to us..
Thank you so much
thanks for the collecion of topic wise questions for jee
Thank you
Thank you