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Class 12 Chemistry Chapter 1 The Solid State objective questions MCQ for CBSC PSED RSEB board exam

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Posted on 14-10-2021 by Admin


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 Class 12 Chemistry Chapter 1 The Solid State objective questions mcq for CBSC PSED RSEB Board School NCRT Book ICSE NEET Exam JEE Exam cbse class 12 objective questions mcq 11 class Board exam 10th class exam board 9th class exam 8th class exam

Class 12 Chemistry Chapter 1 The Solid State objective questions MCQ for CBSC PSED RSEB board exam 12 objective questions mcq 11 class Board exam 10th class exam board 9th class exam 8th class exam

Class 12 Chemistry Chapter 1 The Solid State objective questions MCQ for CBSC PSED RSEB board exam

1 Which of the following is amorphous solid?

Diamond

Graphite

Glass

Common salt

Answer: :- Glass

2 Amorphous solid is known as –

Real solid

False solid

Poly crystalline solid

None of these

ANS:- False solid

3) In NaCl structure

(a) all octahedral and tetrahedral sites are occupied

(b) only octahedral sites are occupied

(c) only tetrahedral sites are occupied

(d) neither octahedral nor tetrahedral sites are occupied

Answer: (b) only octahedral sites are occupied

4 In Zinc blende structure

(a) zinc ions occupy half of the tetrahedral sites

(b) each Zn2- ion is surrounded by six sulphide ions

(c) each S2- ion is surrounded by six Zn2+ ions

(d) it has fee structure

Answer: (c) each S2- ion is surrounded by six Zn2+ ions

5. In which crystal structure the limited packing is maximum

(A) Simple cubic unit cell (sc)

(B) face centered cell (fcc)

(C) body centered cell (bcc)

(D) none of these

Ans:  (B) face centered cell (fcc)

6. The packing efficiency and voids in the bcc structure

(A) 90% and 10%

(b) 70% and 10%

(c) 80% and 10%

 (D) 68% and 32%

Ans  (D) 68% and 32%

7 A unit cell of BaCl2 (fluorite structure) is made up of

(a) four Ba2+ ions and four Cl– ions

(b) four Ba2- ions and eight Cl– ions

(c) eight Ba² ions and four Cl– ions

(d) four Ba² ions and six Cl– ions

 

Answer: (b) four Ba2- ions and eight Cl– ions

8 Which of the following is not true for a crystalline solid?

a) they melt at a certain temperature

b) they are heterozygous

c) they are not long range systems

d) they are called real solids

 

ANS:- They are not long range systems

9 Which of the following is not a property of a crystalline solid?

a) same properties in different directions

b) clear melting point

c) fixed geometric shape

d) high intermolecular force

ANS:- Same properties in different directions

10. The coordination number in the crystal increases

(A) increase in temperature

(B) increase in pressure

(C) from both

 

(D) none of these

(B) increase in pressure

 

12th class chemistry notes ncert 12th class chemistry notes rajasthan board 12th class chemistry notes punjab board Class 12 Chemistry Chapter 1 The Solid State objective questions MCQ for CBSC PSED RSEB board exam 12 objective questions mcq 11 class Board exam 10th class exam board 9th class exam 8th class exam

 



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