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Jac 12th Chemistry Previous Year Questions 2006-2022 Chapter 1. Solid State

Jac 12th chemistry previous years Questions chapter 1. Solid State के पिछलेवर्षो में जो भी प्रश्न पूछे गए हैं, उनकी चर्चा हम इसमें करेंगे इनमें हम सब्जेक्टिव प्रश्न तथा वस्तुनिष्ठ प्रश्न को देखेंगे तो इन महत्वपूर्ण प्रश्न को पढ़ लीजिए.

jac 12th chemistry
jac 12th chemistry

रांची: झारखंड एकेडमिक काउंसिल ( JAC Board) कक्षा Jac 12th Chemistry Previous Year Questions 2006-2022 Chapter 1. Solid State के पिछले वर्षों के सभी महत्वपूर्ण प्रश्न (important Questions) आपको यहाँ पर बताए जा रहे है, जो बोर्ड परीक्षा 2023 के लिए बहुत महत्वपूर्ण है, अगर आप इन सभी प्रश्नों को याद कर लेते हो तो अवश्य ही आप JAC बोर्ड class 12th chemistry exam में अच्छे अंक प्राप्त कर सकते हो.

विद्यार्थी इसका उत्तर स्वयं करें। ये सारे प्रश्न आपके परीक्षा 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।

So students सबसे पहले हम Objective Question को देखेंगे फिर बाद में subjective question भी देखेंगे. यदि छात्र छात्राएं इन सभी प्रश्नों का उत्तर स्वयं से नहीं कर पाते हैं तो वह छात्र-छात्राएं यहां से इसका प्रश्न सहित उत्तर डाउनलोड कर सकते हैं.

Jac 12th Chemistry Previous Year Questions-Objective Questions –

Q1. How many Cl- ions are around Na+ ions in NaCl Crystal? [JAC-2012]
a. 3
b. 4
c. 6
d. 8

Q2.Due to schottky defect the density of crystal – [JAC-2013]
a. increases
b. decreases
c. remain the same
d. none of three

Q3. Coordination Number (C.N) of particles in body centred cubic (bcc) packing is – [JAC-2014]
a. 4
b. 6
c. 8
d. 12

Q4. Number of particles in the unit cell of simple cubic is– [JAC-2015]
a. 1
b. 2
c. 3
d. 4
Q5. Coordination Number of Cl- ions in NaCl structure is- [JAC-2016]
a. 2
b. 3
c. 6
d. 4
Q6. The presence of frankel defect in a crystal ….……… its density. [JAC- 2017]
a. decreases
b. increases
c. does not change
d. either decreases or increases

Q7. The total number of particles in a body centred cubic (bcc) unit cell is- [JAC- 2018]
a. one
b. two
c. three
d. four

Q8. H2O is an example of – [JAC- 2019]
a. polar molecular solid
b. Hydrogen bonded molecular solid
c. Ionic Solid
d. None of these

Q9. In Orthogonal crystal system axial angles, α=β=ϒ are – [JAC- 2020]
a. equal to 90°
b. Less than 90°
c. Greater than 90°
d. none of these

Q10. Both Frankel and schottky defects are found in – [JAC – 2022]
a. AgBr
b. AgCl
c. ZnS
d. NaCl

Q11. Close packing is maximum in the crystal lattice of – [JAC – 2022]
a. face centred cubic
b. body centred cubic
c. Simple Cubic
d. All have same values

Q12. Which of the following is paramagnetism nature? [JAC-2022]
a. TiO2
b. NaCl
c. N2
d. Cu2O

Q13. A metal has fcc arrangement and edge length of unit cell is 400pm. Its atomic radius is – [JAC – 2022]
a. 124 pm
b. 132pm
c. 142 pm
d. 128 pn

JAC Board 12th Chemistry Subjective Question’s-

Q1. What is Schottky defect? [JAC – 2006, 2012]

Q2.An element has body centred cubic structure with a cell edge of 288pm and density of element is 7.2g/cm³. How many atoms are present in 208g of element? [JAC-2006, 2009]

Q3. What is the space lattice of CaF2? [JAC-2007]
Q4. Compound and their bonds: [JAC-2007]
a. HCl —
b. NH4+ —
c. P4 —
d. Al2(CH3)6 —

Q5. How many atoms are present in the BCC unit cell of an elements? [JAC – 2008]

Q6. A face Centred cubic element (atomic mass 60 ) has sell edge of 400pm. What is its density?[JAC -2008]

Q7. Name the crystal defect which lowers the density of an ionic crystal. [JAC-2009]

Q8. Explain the following properties giving suitable examples. [JAC-2010]
a. Ferromagnetism
b. Diamagnetism
c. Paramagnetism
Q9. What do you meant by point defect? [JAC-2011]

Q10. Write any three differences between amorphous and crystalline solid. [JAC-2013, 2015]

Q11. Define the following: [JAC – 2014]
a. Conductors
b. Insulators
c. Semiconductor

Q12. Aluminium crystallizers in cubic close packed structure. Its metallic radius is 125 pm. [JAC- 2017]
a. What is the length of the side of the unit cell?
b. How many unit cell are there in 1 cm³ of aluminium?

Q13. Explain the Ferromagnetic substances and anti-ferromagnetic substances. [JAC-2019]

Q14. Silver metal crystallizes with a fcc lattice. The length of the core of the unit cell is found to be 4.077×10-8cm. Calculate the atomic radius and density of the silver. [JAC-2020]

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