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. Basic D. Neutral
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Formula of Chile saltpetre is__________________?
A. NaNO3
B. CaCO3
C. Ba (NO3)2
D. NH4Cl
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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 are found in earth
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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 :- Jamil Ahmed
Which ion will have maximum value of heat of hydration
Electrolysis of dilute solution of NaCl results at the anode_______________?
A. sodium
B. hydrogen
C. chlorine
D. oxygen
Submitted by :- Jamil Ahmed