2nd Year Chemistry MCQs F.Sc. Part 2
Chapter No.2
S Block Elements
(vi) The element cesium bears resemblance with
(a) Ca
(b) Cr
(c) Both of these metals
(d) None of these metals
Answer:
(d) None of these metals
(vii) Saltpetre has the chemical formula:
(a) KNO3
(b) KNO2
(c) Na2B4O7
(d) Na2CO3.H20
Answer:
(a) KNO3
(viii) The mineral Ca SO4 2H20 has the general name:
(a) Gypsum
(b) Dolomite
(c) Calcite
(d) Epsom salt
Answer:
(a) Gypsum
(ix) Down’s cell is used to prepare:
(a) Sodium carbonate
(b) Sodium bicarbonate
(c) Sodium metal
(d) Sodium hydroxide
Answer:
(c) Sodium metal
(x) Which element is deposited at the cathode during the electrolysis of brine in diaphragm cell:
(a) H2
(b) Na
(c) Cl2
(d) O2
Answer:
(a) H2
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