2nd Year Chemistry MCQs F.Sc. Part 2
Chapter No.3
Group III-A and IV-A Elements
Total MCQs = 38

21. Which elements belongs to group IV A of periodic Table? (SGD 2018) (FSD 2019)

A. Ba
B. I
C. Pb
D. O

22. Chemical formula of Litharge is: (SGD 2019)

A. Pb₂O
B. SiO₂
C. PbO
D. Pb₃O₄

23. Which metal is used in the thermit process because of its activity: (LHR 2015) (SGD. DGK 2017) (RWP 2015, 2019 GII) (MTN 2015, 2018, 2019 GII) (GRW 2019 GII)

A. Iron
B. Copper
C. Aluminium
D. Zinc

24. Aluminum oxide is (LHR, MTN, RWP, BWP 2015)(SGD, DGK 2017) (SWL 2018) (BWP 2018 GII)

A. Acidic oxide
B. Basic Oxide
C. Amphoteric Oxide
D. None of these

25. Chemical composition of colemanite is: (BWP 2017) (FSD 2018) (MTN 2019)

A. Ca₂ B₆O₁₁.5H₂O
B. CaB₄O₇.4H₂O
C. Na₂B₄O₇.4H₂O
D. CaNaB₅O₉.8H₂O

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