Test: Inter Halogens & Pseudo Halogens - NEET MCQ

In XA₅, the central atom has (both X and A are halogens)

Which of the following pairs is isostructural? 

Which of the following pairs shows correct match between formula and structure of a species?

HClO is known as

Which of the following is correct for CsBr₃?

In the known interhalogen compounds, the maximum number of atoms are

Identify the interhalogen compound with zero dipole moment,

Direction (Q. Nos. 16-20) This section contains 5 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.

Q. 

Identify the products formed at the electrodes upon electrolysis of molten ICI.

When Cs[ICl₂] undergo thermal dissociation, the products formed are

Pseudo halogens among the following are

Which has both ionic and covalent bonding?

Same hybridisation is present for the central atom in

Direction (Q. Nos. 16 and 17) This section contains a paragraph, each describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer among the four given options (a), (b), (c) and (d).

Passage

When two different halogens react with each other, the compounds formed are called interhalogen compounds.
The general formula of these compounds is given by XX', , and .
Here, X = halogen of large size and more electropositive.
X' = halogen of smaller size and more electronegative,
e.g. CIF, ClF₃, IF₅, IF₇, etc.
All are covalent and diamagnetic.
They are either volatile liquids or solids except CIF, BrF, CIF₃, IF₅ and IF₇.
Interhalogen compounds are more reactive than halogens (except fluorine). The reason is X—X' bond in interhalogens is weaker than X—X bond in halogens (except F— F bond).
Hydrolysis of interhalogens Interhalogen compounds undergo hydrolysis giving halide ion derived from the smaller halogen and a hypohalite (when XX'), halite (when ), halate (when ) and perhalate (when ) n ion derived from the larger halogen.

XX^' + H₂O → HX + HOX  

Q. 

Which is more stable?

When two different halogens react with each other, the compounds formed are called interhalogen compounds.
The general formula of these compounds is given by XX', , and .
Here, X = halogen of large size and more electropositive.
X' = halogen of smaller size and more electronegative,
e.g. CIF, ClF₃, IF₅, IF₇, etc.
All are covalent and diamagnetic.
They are either volatile liquids or solids except CIF, BrF, CIF₃, IF₅ and IF₇.
Interhalogen compounds are more reactive than halogens (except fluorine). The reason is X—X' bond in interhalogens is weaker than X—X bond in halogens (except F— F bond).
Hydrolysis of interhalogens Interhalogen compounds undergo hydrolysis giving halide ion derived from the smaller halogen and a hypohalite (when XX'), halite (when ), halate (when ) and perhalate (when ) n ion derived from the larger halogen.

XX^' + H₂O → HX + HOX  

Q. 

BrCI on hydrolysis produce

Direction (Q. Nos. 18 and 19) This section is based on Statement I and Statement II. Select the correct answer from the codes given below.

Q. 

Statement I : Interhalogens are ionic compounds.

Statement II : Greater the difference in electronegativity of two different halogen atoms, more is the stability of their interhalogen compound.

Statement I : Cyanide ions (CN^-) are also called pseudo halogens.

Statement II : Cyanide ions make electrovalent bonds with electropositive elements like Na, K, etc.

Direction (Q. No. 20) Choices fo r the correct combination of elements from Column I and Column II are given as options (a), (b), (c) and (d), out of which one is correct.

Q. 

Match the Column I with Column II and mark the correct option from the codes given below.

Direction (Q. Nos. 21-25) This section contains 5 questions. When worked out will result in an integer from 0 to 9 (both inclusive).

Q. 

How many pseudo halide ions are there, among the given ions?

In CIF₃, if both lone pairs occupy axial positions then find the number of lone pair-bond pair repulsions.

How many of the given structures are isostructural with XeF₄ 

Find the sum of bond pairs and non-bonding electron pairs in ICI molecule.

Find the total number of covalent bonds present in cyanogens.