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Interhalogen compounds and polyhalide ions

41 questions on Interhalogen compounds and polyhalide ions from the p-Block Elements: Groups 17 and 18 chapter: 7 NEET level, 17 JEE Main, 17 JEE Advanced. Each one opens with its answer and solution.

Practice this topic All p-Block Elements: Groups 17 and 18 topics

Among the interhalogen compounds of the general type XX'_7, the only one known is NEET level
The shape of the ClF3 molecule is NEET level
Interhalogen compounds (other than fluorides of fluorine itself) are generally more reactive than the parent halogens (except F2) mainly because NEET level
The shape of the triiodide ion I3- is NEET level
Complete hydrolysis of IF5 gives NEET level
Which one of the following interhalogen compounds has a zero dipole moment? JEE Main level
Match List I with List II. List I: (P) ClF3, (Q) BrF5, (R) IF7, (S) ICl. List II: (1) pentagonal bipyramidal, sp^3d^3; (2) square pyramidal, sp^3d^2; (3) T-shap... JEE Main level
Complete hydrolysis of IF7 with water gives JEE Main level
Chlorine trifluoride and bromine trifluoride are used in the processing of nuclear fuel because they convert uranium into JEE Main level
The sum of the number of d orbitals used in hybridisation by the central atoms of ClF3, BrF5 and IF7 is JEE Main level
ICl (boiling point about 370 K) and Br2 (about 332 K) have almost the same molar mass. The higher boiling point of ICl is best explained by JEE Main level
Assertion (A): IF7 is known but ClF7 and BrF7 are not. Reason (R): The iodine atom is large enough to accommodate seven fluorine atoms around it. JEE Main level
When Br2 reacts with excess F2 the interhalogen compound formed is JEE Main level
Which of the following statements about IF7 are correct? JEE Main level
Which of the following polyhalide ions have the shape stated? JEE Main level
Find the total number of lone pairs present on the central atoms of the four ions I3-, ICl2-, ICl4- and BrF4- taken together. Give the answer as an integer. JEE Main level
One mole of Br2 is completely converted into the highest bromine fluoride by excess F2, and that product is then completely hydrolysed to HBrO3 and HF. The numb... JEE Advanced level
Which pair of species has the same shape and the same hybridisation of the central atom? JEE Advanced level
In which set does every species have exactly two lone pairs on the central atom? JEE Advanced level
Among ClF3, BrF3, IF5, ICl4-, BrF5, I3- and ICl2-, the number of species having exactly two lone pairs on the central atom is JEE Advanced level
Iodine trichloride combines with chloride ion as ICl3 + Cl- -> ICl4-. Which statement correctly describes the change at iodine? JEE Advanced level
Use the average bond enthalpies Cl-Cl =242, F-F =158 and Cl-F =255 kJ mol^-1. The heat evolved when 3.55 g of Cl2 (M=71 g mol^-1) reacts completely with excess ... JEE Advanced level
The total number of lone pairs (on all atoms, counting the central atom and the three fluorine atoms) in one molecule of ClF3 is JEE Advanced level
Which of the following statements about ClF3 are correct? JEE Advanced level
Which of the following hydrolysis statements are correct? JEE Advanced level
Which of the following statements about the preparation and properties of interhalogens and polyhalides are correct? JEE Advanced level
Which of the following are correct for the triiodide ion I3-? JEE Advanced level
The shape of the interhalogen compound ClF3 is NEET level
Which of the following is an interhalogen compound of the type XX'_5? NEET level
Match the species in List I with the hybridisation and shape in List II. List I: (P) ClF3 (Q) ICl4- (R) XeF2 (S) XeO3. List II: (1) sp^3d, T-shaped (2) sp^3d^2,... JEE Main level
Match the species in List I with the number of bond pairs and lone pairs on the central atom in List II. List I: (P) ClF3 (Q) XeF4 (R) XeF6 (S) ICl2-. List II: ... JEE Advanced level
Which pair of species has the same number of valence electrons and the same shape? JEE Main level
The total number of lone pairs present on all atoms (central and terminal) in one ICl4- ion plus one XeF4 molecule is JEE Main level
Liquid BrF3 autoionises as 2BrF3 <=> BrF2+ + BrF4-. The shapes (hybridisation of Br) of the cation and the anion are JEE Advanced level
Assume complete hydrolysis in which IF7 gives H5IO6 (IF7 + 6H2O -> H5IO6 + 7HF) and XeF6 gives XeO3 (XeF6 + 3H2O -> XeO3 + 6HF). The moles of HF formed from a m... JEE Advanced level
Interhalogens hydrolyse as XX' + H2O arrow HX' + HOX, where X is the less electronegative halogen. ClF, BrF and ICl are hydrolysed. The order of increasing acid... JEE Advanced level
Select the correct statement(s) about uses. JEE Main level
Select the correct statement(s) about polyhalide ions. JEE Advanced level
Assertion (A): Interhalogen compounds are generally more reactive than the halogens Cl2, Br2 and I2. Reason (R): The X-X' bond in an interhalogen is weaker than... JEE Main level
Consider: (i) IF7 is pentagonal bipyramidal with sp^3d^3 iodine; (ii) XeF6 and IF6- have the same number of valence electrons; (iii) BrF5 and XeF4 are isostruct... JEE Advanced level
Polyhalide ions have the largest (least electronegative) halogen as the central atom. Which of the following ions is therefore NOT expected to exist? JEE Main level