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p-Block Elements (Group 15–18) · Question 22

NEET (UG) 2019MatchingEasy📈 Topic in 50% papers+4−1
1

Match the following : Which of the following is the correct option?

  1. (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
  2. (a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)
  3. (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)
  4. (a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)

Answer

(2) (a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)

Solution

(a) As per NCERT, very pure nitrogen is obtained by thermal decomposition of sodium azide or barium azide: Ba(N3)2 Ba + 3N2 (iv)

(b) Haber process: N2(g) + 3H2(g) 2NH3(g) ammonia (iii)

(c) Contact process: catalytic oxidation of SO2 to SO3 (V2O5) for the manufacture of sulphuric acid (ii)

(d) Deacon’s process: 4HCl + O2 CuCl2 2Cl2 + 2H2O chlorine (i)

(a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)

Answer: (2)

NEET (UG) 2019

Keep practising — p-Block Elements (Group 15–18)

2

Identify the incorrect statement related to PCl5 from the following :

  1. Axial P–Cl bonds are longer than equatorial P–Cl bonds
  2. PCl5 molecule is non-reactive
  3. Three equatorial P–Cl bonds make an angle of 120° with each other
  4. Two axial P–Cl bonds make an angle of 180° with each other
NEET (UG) 2019
3

Match the Xenon compounds in Column-I with its structure in Column-II and assign the correct code :

  1. (a)-(ii), (b)-(iii), (c)-(i), (d)-(iv)
  2. (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)
  3. (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)
  4. (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
NEET (UG) 2019
4

Which of the following statements is not true for halogens?

  1. All are oxidizing agents.
  2. All form monobasic oxyacids.
  3. All but fluorine show positive oxidation states.
  4. Chlorine has the highest electron-gain enthalpy.
NEET 2018
5

Match the interhalogen compounds of column-I with the geometry in column-II and assign the correct code.

  1. (a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)
  2. (a)-(v), (b)-(iv), (c)-(iii), (d)-(ii)
  3. (a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)
  4. (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)
NEET 2017
6

In which pair of ions both the species contain S-S bond?

  1. S4O62-, S2O32-
  2. S2O72-, S2O82-
  3. S4O62-, S2O72-
  4. S2O72-, S2O32-
NEET 2017
7

Name the gas that can readily decolourise acidified KMnO4 solution.

  1. SO2
  2. NO2
  3. P2O5
  4. CO2
NEET 2017
8

HgCl2 and I2 both when dissolved in water containing I- ions, the pair of species formed is

  1. HgI2, I-
  2. HgI42-, I3-
  3. Hg2I2, I-
  4. HgI2, I3-
NEET 2017
9

Match the compounds given in column I with the hybridisation and shape given in column II and mark the correct option

  1. (a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)
  2. (a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)
  3. (a)-(i), (b)-(iii), (c)-(iv), (d)-(ii)
  4. (a)-(i), (b)-(ii), (c)-(iv), (d)-(iii)
NEET 2016 (Phase 1)
10

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 diprotic acids.
  4. Both are triprotic acids.
NEET 2016 (Phase 1)
11

Which one of the following orders is correct for the bond dissociation enthalpy of halogen molecules?

  1. Br2 > I2 > F2 > Cl2
  2. F2 > Cl2 > Br2 > I2
  3. I2 > Br2 > Cl2 > F2
  4. Cl2 > Br2 > F2 > I2
NEET 2016 (Phase 1)

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