MDCAT XI Chemistry States of Matter: Solid Online Test-2

457

Created on June 28, 2025 By

📚 Test Details

Subject: Chemistry
Class: 1st year / XI
Chapter Name:States Of Matter: The Solid
Test: 2
Book: Sindh Textbook
Total No. Of MCQs: 50 MCQs
Time Allowed: 50 Minutes

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1 / 50

1. When gaseous ions of Lithium and hydrogen are allowed to form a bond , energy

a) Is evolved

b) Is absorbed

c) Is sometimes absorbed and sometimes released

d) Has no effect

2 / 50

2. How can I distinguish between The graphite present in the pencil of Aslam And the diamond present in the necklace of his sister?

a) By heating both

b) By adding them in reactions

c) Both of these

d) None of them

3 / 50

3. The solids in which atoms, ions or molecules have random non repetitive three dimensional arrangements are termed as:

a) Crystalline solid

b) False solid

c) True solid

d) Amorphous solid

4 / 50

4. A is the point present on the KCL solid present in the east direction and B is second point present in the west direction of same solid If the current is added to A point then

a) it moves to B

b) It moves in circle direction

c) It moves from A to B and back to A

d) It don't move at all

5 / 50

5. Which of the following has no sharp boiling point?

a) KCl

b) Glass

c) Ice

d) Diamond

6 / 50

6. The nature of bond in bucky ball is

a) Ionic

b) Covalent

c) Molecular

d) Metallic

7 / 50

7. Choose the best who have more options to form ionic bond:

a) C, H

b) H, Cl

c) H, I

d) H , Mg

8 / 50

8. Anisotropic property is related to which solid:

a) Rubber

b) Glass

c) Plastic

d) Alum

e) A , B and C

9 / 50

9. Dry Ice which of the following bonding is present

a) Hydrogen bond

b) Ionic bond

c) Dipole Dipole moment

d) Instantaneous dipole induced dipole

10 / 50

10. Graphite only conducts electricity in perpendicular direction because:

a) Free electron is present

b) Bound electron is present

c) ZeroFree and bounded electron are present

d) No it doesn't allow in this direction

11 / 50

11. If X ------------y ( X and Y) are two allotropes of each other and their transition temperature is ( K) Scientists maintain the temperature= K then

a) conc of X is large

b) Conc of y is large

c) Both are in equilibrium

d) Not completely defined

12 / 50

12. Which of the following has weakest force?

a) C₂H₆

b) H₂O

c) KCl

d) CH₄

13 / 50

13. Lattice energy of BeCl₂ is greater than MgCl_2:

a) Because of charge and size difference

b) Because of charge difference

c) Because of size difference

d) All of these are right

14 / 50

14. Sodium chloride contain ------- number of ions In unit cell:

a) 12

b) 4

c) 8

d) 6

15 / 50

15. Lattice energy is calculated by:

a) Sadi Carnot cycle

b) Haber born cycle

c) Millikan method

d) Bohr cycle

16 / 50

16. Internal energy of solid comprise of

I. Potential energy

II. Translation kinetic energy

III. Rotational Kinetic energy

IV. Vibrational kinetic energy

a) I, II, III, IV

b) II,III,III

c) I, IV

d) Apply only for ideal gas

17 / 50

17. Sublimation is not easily occurred in:

a) Naphthalene

b) C0₂ (g)

c) Iodine

d) Camphor

e) All are example of sublimation

18 / 50

18. Amorphous silica convert sunlight in electricity by using

a) Photoelectric cell

b) Photo voltaic cell

c) Photo light cell

d) Photo ionize cell

19 / 50

19. Which of the following has different physical and chemical properties?

a) ZnSO₄, NiSO₄

b) Calcite and aragonite

c) O₂ and O₃

d) All of these have different properties

20 / 50

20. Transition temperature of rhombic and monoclinic sulphur in centigrade:

a) 90

b) 95

c) 95.5

d) 95.8

21 / 50

21. Monoclinic sulphur is:

a) Alpha sulphur

b) Beta sulphur

c) Gamma sulphur

d) Sigma sulphur

22 / 50

22. Radius ratio of cation and anion is 0.414 to 0.732 coordination number and its example:

a) 8, CsCl

b) 8, ZnS

c) 6, NaCl

d) 6, ZnS

23 / 50

23. Bond angle of graphite is:

a) 109.5

b) 120

c) 104.5

d) 180

24 / 50

24. If all sides are equal and all angles are also equal but not to 90° which of the following crystalline solid is

a) Cubic

b) Orthorhombic

c) Hexagonal

d) Rhombohedral

25 / 50

25. Empty space present in hexagonal close packing:

a) 74

b) 68

c) 26

d) 100

26 / 50

26. Arrangement in body centered cubic structure is:

a) ABA

b) ABCA

c) ABAC

d) ABAB

27 / 50

27. Lattice energy of NaCl is:

a) 787 kj/mole

b) 790kj/mol

c) 800kj/mol

d) -787kj/mol

28 / 50

28. Coordination number of face centered cubic close packing:

a) 12

b) 8

c) 6

d) 10

29 / 50

29. Max lattice energy belongs to

a) LiF

b) NaCl

c) KH

d) BeCl₂

30 / 50

30. Through which symmetry crystal can be rotated 360°

a) Plane of symmetry

b) Center of symmetry

c) Axis of symmetry

d) All symmetries can be used

31 / 50

31. Anisotropic property of crystalline solid depends upon

a) Radius ratio

b) Its structure

c) Orientation

d) Composition

32 / 50

32. Ag₂SO₄ and NiSO₄ shape is

a) Hexagonal

b) Orthorhombic

c) Rhombohedral

d) Not isomorph of each other

33 / 50

33. Maximum conductivity is related with

a) . Ionic solid

b) Covalent solid

c) Metallic solid

d) Molecular solid

34 / 50

34. Distance between two layers of graphite is

a) 3.55 A°

b) 3.45A°

c) 3.35A°

d) 3.39A°

35 / 50

35. In graphite , Angle between a and c is

a) Alpha

b) Beta

c) Gamma

d) Sigma

36 / 50

36. How many Na+ are present in the center of each unit cell?

a) 12

b) 3

c) 1

d) 4

37 / 50

37. If the molecular formula of Calcite and aragonite are same and their structure is different then they are?

a) Isomer

b) isomorph

c) polymorph

d) A and C

38 / 50

38. ------------ is a crystalline’ s basic repetitive structural unit.

a) Monomer

b) Molecule

c) Unit cell

d) Atom

39 / 50

39. Sulfur exists in two polymorphic forms ____________ and ______________

a) rhombic and monoclinic

b) rhombic and triclinic

c) hexagonal and triclinic

d) hexagonal and monoclinic

40 / 50

40. In simple cube one atom or molecule lies at its_________

a) Force corners

b) Nine corners

c) Eight corners

d) Six corners

41 / 50

41. The breaking of crystals along definite direction is called ______

a) Cleavage

b) Symmetry

c) Isotropy

d) Homogeneity

42 / 50

42. Which solid structure has a definite and sharp melting point?

a) All types of solids

b) No type of solid

c) Amorphous solids

d) Crystalline solids

43 / 50

43. When a single substance can crystallize in two or more forms under different conditions provided, it is called as _________

a) Polymorphous

b) Isomorphous

c) Semimorphous

d) Multimorphous

44 / 50

44. Which of the following is an amorphous solid?

a) Quartz

b) charcoal

c) Graphite

d) Salt (NaCl)

45 / 50

45. Solids are generally:

a) Compressible

b) Incompressible

c) Fluid

d) Semi-compressible

46 / 50

46. Which of the following statements is true for an amorphous solid?

a) Long range order is present

b) Short range order is present

c) There is no orderly arrangement

d) Complete order is present at lower temperatures

47 / 50

47. Pick the best pattern in which graphite's molecules are arranged?

a) ABCABC

b) AAAAAA

c) CBACBA

d) ABABAB

48 / 50

48. Which of the following unit cell has all the angles at 90˚ but the sides are of unequal length?

a) Triclinic unit cell

b) Monoclinic unit cell

c) Hex clinic unit cell

d) Orthorhombic unit cell

49 / 50

49. Crystal lattice has ------ arrangement

a) One dimension

b) Two dimensional

c) Three dimensional

d) Four dimension

50 / 50

50. Energy releases during the bond formation of ionic compound is also known as

a) Ionization energy

b) Energy of affinity

c) Bond energy

d) Crystal energy

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MDCAT XI Chemistry States of Matter: Solid Online Test-2

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