The p-Block Elements MCQ Questions for Class 12 Chemistry Chapter 7 with Answers

Find here the NCERT chapter-wise Multiple Choice Questions from Class 12 Chemistry book Chapter 7 The p-Block Elements with Answers Pdf free download. This may assist you to understand and check your knowledge about the chapters. Students also can take a free test of the Multiple Choice Questions of The p-Block Elements. Each question has four options followed by the right answer. These MCQ Questions are selected supported by the newest exam pattern as announced by CBSE.

MCQ Questions for Class 12 Chemistry With Answers

Q1. Which of the following isomers of phosphorus is thermodynamically most stable?

(i) Red
(ii) White
(iii) Black
(iv) Yellow

(iii) Black

Q2. Catenation property is maximum in

(i) phosphorus
(ii) carbon
(iii) sulphur
(iv) zinc

(ii) carbon

Q3. Fluorine differs from rest of the halogens in some of its properties. This is due to

(i) its smaller size and high electronegativity.
(ii) lack of d-orbitals.
(iii) low bond dissociation energy.
(iv) All of the these.

(ii) lack of d-orbitals.

Q4. Chlorine acts as a bleaching agent only in presence of:presence of

(i) Sunlight
(ii) Moisture
(iii) Dry air
(iv) Pure oxygen

(ii) Moisture

Q5. The number of P-O-P bonds in cyclic metaphosphoric acid is

(i) zero
(ii) two
(iii) three
(iv) four

(iii) three

Q6. Element found from sea water is

(i) magnesium
(ii) Sodium
(iii) Iodine
(iv) None of these

(iii) Iodine

Q7. Which of the following compounds contains S=O and S=S bonds?

(i) Sulphuric acid
(ii) Thiosulphuric acid
(iii) Sulphurous acid
(iv) Thiosulphurous acid.

(ii) Thiosulphuric acid

Q8. Helium is preferred to be used in balloons instead of hydrogen because it is

(i) incombustible
(ii) lighter than hydrogen
(iii) more abundant than hydrogen
(iv) non polarizable

(i) incombustible

Q9. Which of the following is not the characteristic of interhalogen compounds?

(i) they are covalent
(ii) more reactive than halogens
(iii) have low B.P. and high volatile
(iv) quite unstable but not explosive

(iii) have low B.P. and high volatile

Q10. Which of the following hydrogen halides is most volatile?

(i) HF
(ii) HCl
(iii) HBr
(iv) HI

(ii) HCl

Q11. In a cyclotrimetaphosphoric acid molecule, how many single and double bonds are present?

(i) 3 double bonds; 9 single bonds
(ii) 6 double bonds; 6 single bonds
(iii) 3 double bonds; 12 single bonds
(iv) Zero double bonds; 12 single bonds

(iii) 3 double bonds; 12 single bonds

Q12. Modern periodic table is given by

(i) Debonair
(ii) Mendeleef
(iii) Mendel
(iv) None of these

(ii) Mendeleef

Q13. On boiling phosphorus with KOH solution, product formed is

(i) Potassium sulphate
(ii) Phosphorus pentoxide
(iii) Phosphorus hydroxide
(iv) Phosphine.

(iv) Phosphine.

Q14. Which of the following elements can be involved in pπ-dπ bonding?

(0) Carbon
(ii) Nitrogen
(iii) Phosphorus
(iv) Boron

(iii) Phosphorus

Q15. Which of the following has maximum ionisation potential?

(i) Al
(ii) P
(iii) Si
(iv) Mg

(ii) P

Q16. The noble gas which does not form clathrates is

(i) He
(ii) Ar
(iii) Kr
(iv) Xe.

(i) He

Q17. Which of the following elements does not show allotropy?

(i) Nitrogen
(ii) Bismuth
(iii) Antimony
(iv) Arsenic

(i) Nitrogen

Q18. Which oxide of nitrogen is obtained on heating ammonium nitrate at 250°C ?

(i) Nitric oxide
(ii) Nitrous oxide
(iii) Nitrogen dioxide
(iv) Dinitrogen tetraoxide

(ii) Nitrous oxide

Q19. The ONO angle is maximum in

(i) NO3–
(ii) NO2–
(iii) NO2
(iv) NO2+

(iv)

Q20. Which of the following is the strongest acid?

(i) H2O
(ii) H2S
(iii) H2Se
(iv) H2Te

(iv)

Q21. Which one of the following is least basic?

(i) NCl3
(ii) NBr3
(iii) NI3
(iv) NF3

(iii)

Q22. Partial hydrolysis of XeF4 gives

(i) XeO3
(ii) XeOF2
(iii) XeOF4
(iv) XeF2

(ii)

Q23. The laughing gas is:

(i) NO
(ii) N2O
(iii) N2O4
(iv) N2O5

(ii)

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MCQ Questions for Class 12 Chemistry with Answers

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