A. Einstein
B. Dr.A.Walash
C. Schwartz
D. S.E.Manhan
A. Mass of an atom itself is in fraction
B. Atomic masses are average masses of isobars
C. Atmoic masses are average masses of isotopes proportional to their relative abundance
D. Atmoic masses are average masses of isotopes
A. Ch3
B. OH
C. OCH3
D. O2
A. in silvery mirror
B. in making medicine urotroe
C. in making throat lozenges
D. in making acetic acid
A. Zero
B. One
C. Two
D. Three
A. Their oxides are basic
B. Their oxide and hydroxides are water soluble
C. Both A & B
D. They are found in earth