The most volatile halogen acid is

1. HF

2. HCl

3. HBr

4. HI

Subtopic:  Group 17 - Preparation, Properties & Uses |
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Which of the following structure is most expected for the molecule XeOF4 ?

1. Tetrahedral

2. Square pyramid

3. Square planar

4. Octahedral

Subtopic:  Group 18 - Preparation, Properties & Uses |
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The number of P-O-P linkages in P4O10 and P4O6 are respectively -

1.  6,6 

2.  6, 8

3.  8, 6

4.  8, 8

Subtopic:  Group 15 - Preparation, Properties & Uses |
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Incorrect order among the following is:

1. F> Cl> Br> I2 Oxidising power
2. F < Cl > Br > I Electron gain enthalpy
3. F> Cl> Br> I2 Bond dissociation energy
4. F> Cl > Br > I Electronegativity

Subtopic:  Group 17 - Preparation, Properties & Uses |
 78%
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AIPMT - 2008

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Most basic oxide is

1. N2O3

2. N2O5

3. Bi2O5

4. Bi2O3

Subtopic:  Group 15 - Preparation, Properties & Uses |
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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
 
Options: (a) (b) (c) (d)
1. (iii) (i) (iv) (ii)
2. (v) (iv) (iii) (ii)
3. (iv) (iii) (ii) (i)
4. (iii) (iv) (i) (ii)

Subtopic:  Interhalogen Compounds |
 82%
From NCERT
NEET - 2017

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In which pair of ions both the species contain S-S bond?
 
1. S4O62-, S2O32-
 
2. S2O72-, S2O82-
 
3. S4O62-, S2O72-
 
4. S2O72-, S2O32-

 

Subtopic:  Group 16 - Preparation, Properties & Uses |
 67%
NEET - 2017
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Hot concentrated sulphuric acid is a moderately strong oxidizing agent. Which of the following reaction does not show - ­oxidising behaviour?

1.  Cu+2H2SO4 CuSO4+SO2+2H2O

2.  3S+2 H2SO4 3SO2+2H2O

3.  C+2H2SO4 CO2+2SO2+2H2O

4.  CaF2+H2SO4 CaSO4+2HF

Subtopic:  Group 16 - Preparation, Properties & Uses |
 83%
From NCERT
NEET - 2016

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Identify the false statement among the following about the halogens:
 
1. All form monobasic oxyacids(except HOF).
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 |
From NCERT
NEET - 2018

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Which is the correct statement for the given acids?
1. Phosphinic acid is a monoprotic acid while phosphonic acid is a diprotic acid
2. Phosphinic acid is a diprotic acid while phosphonic acid is a monoprotic acid
3. Both are triprotic acids
4. Both are diprotic acids

 

Subtopic:  Group 15 - Preparation, Properties & Uses |
 68%
From NCERT
NEET - 2016
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