2nd Year Chemistry MCQs F.Sc. Part 2
Chapter No.2
Block Elements
Total MCQs = 31
16. The milk of magnesia is used for the treatment of (GRW 2012)
A. Acidity
B. Basicity
C. Rancidity
D. Jaundice
Answer:
C. Rancidity
17. The element deposited at the Cathode during the electrolysis of brine in diaphragm (Nelson) cell (FSD 2014) (MTN 2017) (SWL, SGD 2018) (BWP 2019 GII)
A. Na
B. H2
C. Cl2
D. O2
Answer:
B. H2
18. Nelson’s cell is used to prepare:
A. NaOH
B. Na2CO3
C. Na metal
D. NaCl
Answer:
B. Na2CO3
19. Cement contains gypsum: (LHR 2014) (GRW 2015, 2016)
A. 3%
B. 2%
C. 0.20%
D. 0.30%
Answer:
C. 0.20%
20. In Down’s cell, CaCl2 is added to NaCl to:
A. Increase solubility
B. Increase dissociation
C. Increase conducitivity
D. Lower its melting point
Answer:
D. Lower its melting point
