Which of the following statements is not true for halogens?
1. All form monobasic oxyacids.
2. All are oxidizing agents.
3. All but fluorine show positive oxidation states.
4. Chlorine has the highest electron-gain enthalpy.

 

Subtopic:  Group 17 - Preparation, Properties & Uses |
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In the structure of ClF3, the number of lone pairs of electrons on central atom 'Cl' is

1. 1

2. 2

3. 3

4. 4

Subtopic:  Interhalogen Compounds |
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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

The correct match among the following is -
       A   B    C    D
1.   (iii) (iv) (i) (ii)

2.   (iii) (i) (iv) (ii)

3.   (v) (iv) (iii) (ii)

4.   (iv) (iii) (ii) (i)

Subtopic:  Interhalogen Compounds |
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In which pair of ions both the species contain S-S bond?

(a) S2O72-, S2O32-(b) S4O62-, S2O32-(c) S2O72-, S2O82-(d) S4O62-, S2O72-

Subtopic:  Group 16 - Preparation, Properties & Uses |
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Match the interhalogen compounds in 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
 
(A) (B) (C) (D)
1. (iii) (i) (iv) (ii)
2. (i) (iv) (iii) (ii)
3. (iv) (iii) (ii) (i)
4. (iii) (iv) (i) (ii)
Subtopic:  Interhalogen Compounds |
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Which of the following pairs of the compound is isostructural?

1. TeF2, XeF2

2. IBr2-, XeF2

3. IF3, XeF2

4. BeCl2, XeF2

Subtopic:  Group 17 - Preparation, Properties & Uses |
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In which pair of ions both the species contain S-S bond?

1. S2O72-, S2O82-

2. S4O62-, S2O32-

3. S4O62-, S2O72-

4. S2O72-, S2O32-

Subtopic:  Group 16 - Preparation, Properties & Uses |
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AlF3 is soluble in HF only in presence of KF. It is due to the formation of
(1) K3[AIF3H3]

(2) K3[AIF6]

(3) AlH3

(4) K[AIF3H]

Subtopic:  Group 17 - Preparation, Properties & Uses |
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Hot concentrated sulphuric acid is a moderately strong oxidising agent. Which of the following reaction doe not show oxidising behaviour?

(a) Cu + 2H2SO4 CuSO4 + SO2 + 2H2O

(b) 3S + 2H2SO4 3SO2 + 2H2O

(c) C + 2H2SO4 CO2 + 2SO2 + 2H2O

(d) CaF2 + H2SO4 CaSO4 + 2HF

Subtopic:  Group 16 - Preparation, Properties & Uses |
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Among the following, which one is a wrong statement?

(1) PH5 and BiCl5 do not exist

(2) ρp-dp bonds are present in SO2

(3) SeF4 and CH4 have same shape

(4) I3+ has bent geometry

Subtopic:  Group 17 - Preparation, Properties & Uses | Group 15 - Preparation, Properties & Uses |
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