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Quiz 5
Mdcat-past-papers - SZABMU - Chemistry Quiz
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Board: SZABMU | Subject: Chemistry |
81. Which element has smaller shielding effect among the following?
Mg
Ca
Rb
Sr
82. Which of the following alkali metals can form normal oxide as well as peroxide?
Na
K
Li
Cs
83. The transition element which doesn't show variable valency:
Zn
Cu
Fe
Co
84. The binding energy of transition metals increases up to group:
IIB
IVB
IIIB
VIB
85. Which of the following have positive electron affinity?
Addition of electron to Cl
Addition of electron to O
Addition of electron to O⁻¹
Addition of electron to N
86. The melting point of sulphur is higher than that of phosphorus because:
Sulphur has strong van der Waals forces
Sulphur has weak van der Waals forces
Phosphorus has strong van der Waals forces
Phosphorus has weak van der Waals forces
87. Which one of the following noble gases will have highest boiling point?
Kr
Ar
Ne
He
88. A metal reacts vigorously with cold water melting into a ball of molten metal. It moves across the surface of water giving off hydrogen gas and burns with yellowish golden flame. What could be the identity of this metal?
Potassium
Sodium
Lithium
Calcium
89. Among alkali metals which element reacts slowly with H₂O?
Na
K
Rb
Li
90. In transition elements, number of unpaired electrons increase up to group number:
IIIB & IVB
IB & IIB
IVB & IIIB
VB & VIB
91. The binding energy of transitional elements weakens progressively up to group:
IIIB
IVB
IIB
VB
92. When potassium superoxide reacts with carbon dioxide, following products are formed:
K₂CO₃ + O₂
K₂CO₃ + CO
KO₂ + CO₂ + [O]
KO₂
93. The color imparted by the Li wire when subjected to flame is:
Crimson Red
Greyish white
Pale Greens
Brick red
94. The trend of increasing order of densities among Group 1 elements is:
Li, Na, Rb, Cs
Na, K, Rb, Cs
Cs, Rb, Na, Li
Cs, Rb, Na, Li
95. Which of the following sulphate of Group-II elements are insoluble?
MgSO₄
BeSO₄
CaSO₄
BaSO₄
96. Which of the following element is s-block element?
Sulphur
Iron
Potassium
Neon
97. Homo-cyclic organic compounds are subdivided into two types, namely:
Alicyclic and Aromatic
Open-chain and Branched-chain
Aromatic and Non-aromatic
Anti-aromatic
98. The type of isomerism arising due to shifting of a proton from one atom to another within the same molecule is:
Chain
Metamerism
Tautomerism
Position
99. In alkanes, each carbon has which type of hybridization?
sp
sp²
sp³
dsp
100. Metamers differ from each other due to:
Functional group
Position of functional group
Shifting of proton
Distribution of carbon atoms around the functional group
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