The element cesium bears resemblance with________________?
A. Ca
B. Cr
C. Both of the above
D. None of the above
S-BLOCK ELEMENTS
Which one of the following is not an alkali metal ?
Which one of the following is not an alkali metal ?
A. Francium
B. Caesium
C. Rubidium
D. Radium
Carbonates of lithium are not stable like that of sodium due to________________?
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
Li is different from its family members due to____________________?
Li is different from its family members due to____________________?
A. small size
B. high charge density
C. less electropositivity
D. all of the above
The oxides of beryllium BeO is_______________?
The oxides of beryllium BeO is_______________?
A. Acidic
B. Basic
C. Amphoteric
D. Neutral
Formula of Chile saltpetre is__________________?
Formula of Chile saltpetre is__________________?
A. NaNO3
B. CaCO3
C. Ba (NO3)2
D. NH4Cl
A elements are named as alkali metals because_______________?
A 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