JAC 12th Chemistry Important Questions Chapter 7: The P-Block Elements

JAC 12th Chemistry Important Questions Chapter 7: झारखण्ड बोर्ड कक्षा 12th सभी विद्यार्थियों के लिए chemistry में Chapter 7 The P-Block Elements के पिछले वर्षो में जो भी प्रश्न पूछे गए हैं, उनकी चर्चा हम इसमें करेंगे तो इन Important Questions को पढ़ लीजिए.

JAC 12th Chemistry Important Questions Chapter 7: The P-Block Elements

विद्यार्थी इसका उत्तर स्वयं करें। ये सारे प्रश्न आपके परीक्षा (JAC 12th Chemistry Important Questions For Board Exams)में बार – बार पूछे जा रहे है। इसमें आपको सभी chapter का अलग-अलग पिछले 16 से 17 वर्षों के महत्वपूर्ण प्रश्न मिलेंगे। यानि 2006-2022 इसमें आपको ये भी बताया जा रहा है कि कौन से प्रश्न किस तरह से एवं कितने marks के पूछे जा रहें है.

Name of Organisation	Jharkhand Academic Council Ranchi
Category	Important Question
State	Jharkhand
Question Types	Previous Year & Important Questions
Class	12th(Inter)
Stream	Science
Subject	Chemistry
Chapter	7th Chapter
Chapter Name	The P-Block Elements
Telegram	Join Us

JAC 12th Chemistry Previous Years Important Questions-

Q1. Write down structural formulas of PCl5 and XeF4. (2006)
Q2. Write down the two possible configuration of 2-chlorobutane and identify them in term of R and S configuration. (2006)
Q3. Suggest the hybridization and shape of the following compounds and ions : (2007)
a. PF5
b. IF7
c. CO3²-
d. NH4+
e. XeF2

Q4. Discuss the general characteristics of group 14 elements. (2007)
Q5. Write structural formula for the compounds and then find the no. of sigma and pi covalent bonds in them. (2008)
a. H2CO3
b. XeOF4
c. XeO2F2
Q6. Write structural formula of the following: (2009)
i. H3PO4
ii. H4P2O7

Q7. Why is NH3 more basic than PH3? (2009)
Q8.What happens when iodine is treated with concentrated H2SO4 ? (2010)
Q9. What happens when concentrated HNO3 is treated with copper? (2010)
Q10. Sulphur in vapour state exhibits paramagnetic behaviour, why? (2010)

Q11. Draw the structures of the following molecules and give the hybridisation. (2010)
a) SF6
b) XeF2
Q12. Complete the following equations : (2010)
a) Ca3P2(s) + H2SO4 → ………..
b) NaOH (aq. hot & conc.)+ Cl2(g) → …………
c) NH3(g) + Cl2(g) (excess) → ………..
Q13. What is the chemical formula of laughing gas? Write down its Lewis dot structure. (2011)

Q14. Draw the structures of the following molecules : (2011)
a) XeF2
b) BrF3
Q15. Write balanced equations for the following : (2011)
a) NaCl is heated with conc. Sulphuric acid in the presence of MnO2 .
b) chlorine gas is passed into a solution of NaI in water.
Q16. Give the principle with equation for the manufacture of sulphuric acid by contact process. Write the test of SO4²- ion. (2011)

Q17. Which element is kept in water? (2012)
a) P
b) Na
c) S
d) Si
Ans :– a) P ( Phosphorus)
Q18. Write the laboratory method of the preparation of phosphine with equation. (Only principle) (2012)
Q19. Write the balanced equation for the following:(2012)
a) NaCl is heated with sulphuric acid in the presence of MnO2 .
b) Iodine is treated with concentrated HNO3 .

Q20. Balance the following equations: (2012)
a) XeF2 + H2O → ……….
b) MnO2+ HCl → ……….
c) I2 + NaClO3 → ……….
Q21. What happens when acidified KMnO4 solution reacts with (2013)
a) H2S
b) SO2
Q22. Describe contact process (equation only) for the manufacture of sulphuric acid. (2013,2016)

Q23. Write about any three methods of preparation of NH3.(2013)
Q24. What happens when NH3 reacts with (2013,2016)
a) CO2
b) Na
Q25. Which of the following is the least stable hydride? (2014)
a) NH3
b) PH3
c) AsH3
d) SbH3
Ans:– d) SbH3
Q26. Give balanced equation of the following: (2014)
a) I2 + NaClO3 →
b) I2 + Na2S2O3 →
Q27. Complete the following :(2014)
a) NaCl + H2SO4 (conc) →…………..
b) Na2SO3 + HCl → …………..
c) Cl2 + H2O → ……….
d) Cl2+ NaOH(conc) → ……. (in the presence of heat)
e) Na2S2O3 + H2O + Cl2→ ……….

Q28. Draw the structure of the following : (2014)
a) H2SO4
b) H2S2O7
c) HClO4
d) HClO3
e) HClO2
Q29. Which of the following noble gases is most reactive?
a) He
b) Ne
c) Xe
d) Ar (2015)
Ans :– c) Xe
Q30. Give balanced equation of the following :- (2015)
a) H2S + H2SO4 (conc) → ……….
b) NaHCO3+ H2SO4(dilute) → …………

Q31. Complete the following :(2015)
a) (NH4)2Cr2O7 → ………… ( in the presence of heat)
b) C + HNO3(conc) → ……….
c) (NH4)2SO4+ NaOH → ………..
d) P4 + HNO3(conc) → …………
e) P4+ NaOH+ H2O → …………
Q32. Draw the structure of the following — (2015)
a) H3PO4
b) H3PO3
c) H3PO2
d) H4P2O7
e) (HPO3 )3
Q33. Write the principle for the production of NH3 in Haber’s process. (2016)

Q34. Give reasons for the following :— (2017)
a) SiF6²- is known but SiCl6²- not .
b) H3PO2 acts as a monobasic acid.
c) PbO2 is a stronger oxidizing agent than SnO2.
d) Sulphur exhibits paramagnetic behaviour in vapour state.
e) bond dissociation energy e of F2is less than that of Cl2.
Q35. Draw the structures of the following compounds — (2017)
a) IF7
b) H2SO7
c) XeOF4
d) S8
e) H3PO3

Q36. Why does NH3 form hydrogen bonding while PH3 does not? (2018)
Q37. Complete the following reactions — (2018)
a) XeF2 + H2→ …………
b) XeF4+ Pt → ………….
c) XeOF4+ 3H2 → ………….

Q38. How is phosphine prepared in laboratory? How does it react with (2018)
a) CuSO4
b) HgCl2
Q39. Discuss the general characteristics of group 16 elements with reference to(2018)
a) Atomic size
b) ionization enthalpy
c) electro negativity

Q40. Complete the following (2019)
a) XeF2 + H2→ ……….
b) XeF6 + 3H2O → …………
Q41. Draw the structures of the following compounds — (2019)
a) XOF2
b) H3PO4
c) H3PO3
d) IF6
e) IF7
Q42. Give the principles involved in the manufacture of nitric acid by ostwald process. How does concentrated HNO3reacts with
i) C
ii) I2 (2019)

Q43. How does White phosphorus react with (2019)
i) H2SO4
ii) Sulphur
iii) Mg
iv) HNO3
Q44. Complete the following —(2020)
a) Xe(g) + PtF6(g) → ………
b) XeF4+ 2H2→ ………
Q45. Complete the following — (2020)
a) Br2+ NaI → …………
b) CaF2+ H2SO4→ ………..
c) NHCl4(aq) + NaNO2→ ………
Q46. Give the principle involved in the preparation of Sulphur dioxide. How does SO2 reacts with a) NaOH and b) H2O (2020)

Q47. Draw the structures of the following compounds — (2020)
a) N2O5
b) HClO4
c) XeF2
d) H2S2O7
e) H2SO4

Conclusion

उम्मीद करते हैं या आर्टिकल(JAC 12th Chemistry The P-Block Elements Important Questions) आपको पसंद आया होगा अगर आया हो तो कृपया करके अपना प्यारा सा कंमेंट नीचे कर दे उसके साथ ही अधिक अपडेट जानने के लिए हमारे टेलीग्राम ग्रुप में ज्वाइन कर ले.