The p-Block Elements Class 12 MCQ Online Test With Answers Questions

Check the below NCERT MCQ Questions for Class 12 Chemistry Chapter 7 The p-Block Elements with Answers Pdf free download. MCQ Questions for Class 12 Chemistry with Answers were prepared based on the latest exam pattern. We have provided The p-Block Elements Class 12 Chemistry MCQs Questions with Answers to help students understand the concept very well.

Class 12 Chemistry Chapter 7 MCQ With Answers

Chemistry Class 12 Chapter 7 MCQs On The p-Block Elements

P Block Elements Class 12 MCQ Question 1.
Boron shows diagonal relation with
(a) Al
(b) C
(c) Si
(d) Sn

Answer

Answer: (c) Si

MCQ Of P Block Elements Class 12 Question 2.
Catenation property is maximum in
(a) phosphorus
(b) carbon
(c) sulphur
(d) zinc

Answer

Answer: (b) carbon

MCQ On P Block Elements Class 12 Question 3.
Which one of the following is an electrophilic reagent?
(a) BF₃
(b) KH₃
(c) H₂O
(d) None of these

Answer

Answer: (a) BF₃

P Block Elements MCQ Question 4.
Element found from sea water is
(a) magnesium
(b) Sodium
(c) Iodine
(d) None of these

Answer

Answer: (c) Iodine

P Block MCQ Class 12 Question 5.
The shape of XeF₄ is
(a) tetrahedral
(b) square planar
(c) pyramidal
(d) linear

Answer

Answer: (b) square planar

P Block Class 12 MCQ Question 6.
Which one of the following is the strongest lewis acid?
(a) BF₃
(b) BCl₃
(c) BBr₃
(d) Bl₃

Answer

Answer: (b) BCl₃

Class 12 P Block MCQ Question 7.
Which one of the following does not form hydrogen bonding?
(a) NH₃
(b) H₂O
(c) HCl
(d) HF

Answer

Answer: (c) HCl

P Block Elements MCQ Class 12 Question 8.
Main source of helium is
(a) Air
(b) Radium
(c) Monazite
(d) Water

Answer

Answer: (c) Monazite

Class 12 Chemistry P Block MCQ Question 9.
Which one of the following dement is liquid at normal temperature?
(a) zinc
(b) mercury
(c) bromine
(d) water

Answer

Answer: (b) mercury

Class 12 Chemistry Chapter 7 MCQ Question 10.
Which one of the following is least basic?
(a) NCl₃
(b) NBr₃
(c) NI₃
(d) NF₃

Answer

Answer: (c) NI₃

P Block Elements Class 12 MCQs Question 11.
H₂SO₄ is a/an
(a) acid
(b) base
(c) alkali
(d) salt

Answer

Answer: (a) acid

P Block Elements MCQs Question 12.
Modern periodic table is given by
(a) Debonair
(b) Mendeleef
(c) Mendel
(d) None of these

Answer

Answer: (b) Mendeleef

Class 12 P Block Elements MCQ Question 13.
Which one of the following elements is found in free state in nature?
(a) Sodium
(b) Iron
(c) Zinc
(d) Gold

Answer

Answer: (d) Gold

MCQs On P Block Elements Class 12 Question 14.
Which of the following is the strongest oxidising agent?
(a) F₂
(b) Cl₂
(c) l₂
(d) Br₂

Answer

Answer: (a) F₂

P Block Elements Class 12 MCQ Questions Question 15.
Which of the following has maximum ionisation potential?
(a) Al
(b) P
(c) Si
(d) Mg

Answer

Answer: (b) P

Question 16.
The number of P-O-P bonds in cyclic metaphosphoric acid is
(a) 2
(b) 0
(c) 3
(d) 4

Answer

Answer: (a) 2

Question 17.
Which of the following oxides is an hydride of nitrous acid ?
(a) N₂O₃
(b) NO₂
(c) NO
(d) N₂O₄

Answer

Answer: (a) N₂O₃

Question 18.
Which oxide of nitrogen is obtained on heating ammonium nitrate at 250°C ?
(a) Nitric oxide
(b) Nitrous oxide
(c) Nitrogen dioxide
(d) Dinitrogen tetraoxide

Answer

Answer: (b) Nitrous oxide

Question 19.
Atomicity of phosphorus is
(a) 1
(b) 2
(c) 3
(d) 4

Answer

Answer: (d) 4

Question 20.
The structure of white phosphorus is
(a) square-planar
(b) pyramidal
(c) tetrahedral
(d) trigonal planar

Answer

Answer: (c) tetrahedral

Question 21.
PCl₃ on hydrolysis gives
(a) H₃PO₃
(b) HPO₃
(c) H₃PO₄
(d) POCl₃

Answer

Answer: (a) H₃PO₃

Question 22.
Arrange the following in decreasing Lewis acid strength -PF₃, PCI₃, PBr₃, Pl₃
(a) Pl₃ > PBr₃ > PCl₃ > PF₃
(b) PF₃ > PCl₃ > PBr₃ > Pl₃
(c) PCl₃ > PBr₃ > Pl₃ > PF₃
(d) PBr₃ > Pl₃ > PF₃ > PCl₃

Answer

Answer: (a) Pl₃ > PBr₃ > PCl₃ > PF₃

Question 23.
How many P-O-P bonds appear in cyclic meta-phosphoric acid?
(a) 4
(b) 3
(c) 2
(d) 1

Answer

Answer: (b) 3

Question 24.
Which of the following is a tetrabasic acid?
(a) Hypophosphorus acid
(b) Metaphosphoric acid
(c) Pyrophosphoric acid
(d) Orthophosphoric acid

Answer

Answer: (c) Pyrophosphoric acid

Question 25.
Which of the following is not correctly matched?
(a) PCl₅-sp³d hybridisation
(b) PCl₃-sp³ hybridisation
(c) PCl₅ (solid)-[PtCl₄]^– [PtCl₃]^–
(d) H₃PO₃ -tribasic

Answer

Answer: (d) H₃PO₃ -tribasic

Question 26.
Arrange the following hydrides of group 16 elements in order of increasing stability
(a) H₂S < H₂O < H₂Te > H₂Se
(b) H₂O < H₂Te < H₂Se < H₂S
(c) H₂O < H₂S < H₂Se < H₂Te
(d) H₂Te < H₂Se < H₂S < H₃O

Answer

Answer: (d) H₂Te < H₂Se < H₂S < H₃O

Question 27.
The hybridisation of sulphur in sulphur hexafluoride is
(a) sp³d
(b) sp³d²
(c) sp³d³
(d) sp³

Answer

Answer: (b) sp³d²

Question 28.
On heating KCIO, we get
(a) KClO₂ + O₂
(b) KCl + O₂
(c) KCI + O₃
(d) KCl + O₂ + O₃

Answer

Answer: (b) KCl + O₂

Question 29.
Which of the following is not correctly matched?
(a) Acidic oxides-P₂O₅ NO₂, CL₂O₇
(b) Basic oxides-Na₂Om, CaO, MgO
(c) Neutral oxides-CO₂, CO, BeO
(d) Amphoteric oxides-ZnO, SnO,Al₂O₃

Answer

Answer: (c) Neutral oxides-CO₂, CO, BeO

Question 30.
Sulphur molecule is
(a) diatomic
(b) triatamic
(c) tetratomic
(d) Octa-atomic

Answer

Answer: (d) Octa-atomic

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