Every question from past board papers on General trends, Group 17 and 18, newest paper first. Open any question for its full worked answer.
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : ICl is more reactive than \(I_2\).
Reason (R) : I-Cl bond is weaker than I-I bond.
In the light of the above statements, choose the most appropriate answer from the options given below :
Noble gases are named because of their inertness towards reactivity. Identify an incorrect statement about them.
The correct structure of tribromooctaoxide is :
Match the Xenon compounds in Column - I with its structure in Column - II and assign the correct code :
Column - I: (a) XeF\(_4\) (b) XeF\(_6\) (c) XeOF\(_4\) (d) XeO\(_3\)
Column - II: (i) pyramidal (ii) square planar (iii) distorted octahedral (iv) square pyramidal
Code :
Which of the following statements is not true for halogens ?
\(HgCl_2\) and \(I_2\) both when dissolved in water containing \(I^-\) ions the pair of species formed is :
Match the interhalogen compounds of column I with the geometry in column II and assign the correct code.
Column I | Column II
(a) XX' | (i) T-shape
(b) \(XX_3'\) | (ii) Pentagonal bipyramidal
(c) \(XX_5'\) | (iii) Linear
(d) \(XX_7'\) | (iv) Square-pyramidal
| (v) Tetrahedral
Code : (a) (b) (c) (d)
Among the following, the correct order of acidity is :
Which one of the following orders is correct for the bond dissociation enthalpy of halogen molecules ?
