On contact with oxygen, Rubidium forms
A. normal oxide
B. per oxide
C. super oxide
D. trioxide
Related Questions on Chapter 1: Chemical Reactivity Chemistry Mcqs for High School - Grade 9
Metal that difficult to oxidize are called
A. weak metals
B. strong metals
C. noble metals
D. ionic metals
As we move across the period the electronegativity
A. decreases
B. increases
C. remains same
D. becomes zero
As we move across the period from left to right, the reactivity of metals with oxygen
A. decreases
B. increases
C. remains same
D. zero
The sodium metal is soft due to
A. weak metallic bond
B. strong metallic bond
C. large size
D. small size