Hamad S-BLOCK ELEMENTS 08/08/2020 A. Base B. Basic salt C. Ashes D. Spirit Related Mcqs: Carbonates of lithium are not stable like that of sodium due to________________?A. Low electronegativity B. Low electropositivity C. Low charge density D. Not known yet... Downs cell is used to prepare_________________?A. Sodium carbonate B. Sodium bicarbonate C. Sodium metal D. Sodium hydroxide... Ammonia may be prepared by heating ammonium chloride with_______________?A. Water B. NaCl C. Aqueous sodium hydroxide D. H2SO4... Which of the following sulphates is not soluble in water ?A. Sodium sulphate B. Potassium sulphate C. Zinc sulphate D. Barium sulphate... The ore CaSO4.H2O has the general name_______________?A. Gypsum B. Dolomite C. Calcite D. Plaster of Paris...
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