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Chemistry
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Quiz 2
Mdcat-past-papers - SZABMU - Chemistry Quiz
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Board: SZABMU | Subject: Chemistry |
21. The strongest hydrogen bond is present in:
HF
H₂O
NH₃
NH₃
22. Ice floats on the surface of water due to:
Larger bond length
Cubic structure of Ice
Weak intermolecular forces
Empty spaces in the structure of ice
23. Which of the following has highest surface tension?
Benzene
Alcohols
Ether
Water
24. Which of the following has highest boiling point?
C₆H₁₄
C₅H₁₂
C₁₀H₂₂
C₃H₈
25. Which of the following has lowest vapour pressure at 20°C?
Diethyl ether
Chloroform
CCl₄
Water
26. The compound which exhibits highest vapour pressure is:
Water
HF
Petrol
Acetic acid
27. Which of the following molecules are soft and have weak intermolecular forces?
H₂O
I₂
Sugar
Graphite
28. Which of the following solids have strong metallic bond?
Potassium
Phosphorus
Calcium
Sulphur
29. Identify the pair of solids having molecular nature:
CO₂, C
S₈, I₂
SO₃ and Na₂SO₄
CO₂ and KCL
30. An Sg₂ SO₄ and Na₂SO₄ are the:
Polymorphs
Isomorphs
Allotropes
Anisotropes
31. Which one of the following is a non-polar molecular solid?
CO₂
MgO
SiC
Ice
32. The shape of NaCl according to its radius ratio is:
Octahedral
Body centered cubic
Tetrahedral
Triangular
33. The molecules of iodine (I₂) form the:
Molecular crystals
Covalent crystals
Ionic crystals
Metallic crystals
34. The type of bonding in Zinc is:
Ionic
Covalent
Dative
Metallic
35. Which one of the following is semiconductor?
Al
Si
P
Mg
36. 10 pascal is equal to:
0.000098atm
1.98 atm
10.019kpa
4.014 psi
37. Which gas in the discharge tube has the highest e/m ratio?
Oxygen
Helium
Nitrogen
Hydrogen
38. If value of azimuthal quantum number is l then value of m will range from:
-1 to 1
-1 to 2
-1 to 3
-1 to 4
39. The dumb bell like orbitals can move in how many directions?
7
5
1
3
40. The relationship between quantum number n and l is
n = -l
n = l-2
l = n-1
n = l-2
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