-
mnsoomro
Posts
Ammonia may be prepared by heating ammonium chloride with_______________?
A. Water B. NaCl C. Aqueous sodium hydroxide D. H2SO4 Submitted by :- Jamil Ahmed
Downs cell is used to prepare_________________?
A. Sodium carbonate B. Sodium bicarbonate C. Sodium metal D. Sodium hydroxide Submitted by :- Jamil Ahmed
Which one of the following is not an alkali metal ?
A. Francium B. Cesium C. Rubidium D. Radium Submitted by :- Jamil Ahmed
Carbonates of lithium are not stable like that of sodium due to________________?
A. Low electronegativity B. Low electro positivity C. Low charge density D. Not known yet Submitted by :- Jamil Ahmed
Li is different from its family members due to____________________?
A. small size B. high charge density C. less electropositivity D. all of the above Submitted by :- Jamil Ahmed
The oxides of beryllium BeO is_______________?
A. Acidic C. Amphoteric B.…
Formula of Chile saltpetre is__________________?
A. NaNO3 B. CaCO3 C. Ba (NO3)2 D. NH4Cl Submitted by :- Jamil Ahmed
Elements are named as alkali metals because_______________?
A. Their oxides are basic B. Their oxide and hydroxides are water soluble C. Both A & B D. They…
Which one is natron?
A. Na2CO3 (Soda Ash) B. Na2CO3.10H2O (washing soda) C. Na2CO3.H2O (Mono Hydrate Soda Ash) D. NaHCO3 (Baking Soda) Submitted by…
Which ion will have maximum value of heat of hydration
A. Al+3 B. Cs+ C. Ba+ D. Mg+2 Submitted by :- Jamil Ahmed