Elements and Substances
Copper sulphate (CuSO4) possesses
Red colour
Blue colour
Green colour
Yellow colour
Blue colour
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Which one of the following does not react with acids?A. O
B. Cr
C. Cu
D. Ni
Which substance is present in fuel?
A. Iron
B. Gold
C. Carbon
D. Copper
Symbol of Copper is
A. Ca
B. Cl
C. Co
D. Cu
When sulphur dioxide is dissolve in water then
A. Sulphur is formed
B. Sulphuric acid is formed
C. Sulphur trioxide is formed
D. Sulphurous acid is formed
Smallest particle of a compound is
A. atom
B. electrons
C. molecules
D. all of these
Which material show shiny appearance?
A. Coal
B. Carbon
C. Sulphur
D. Aluminium
Symbol of Magnesium is
A. M
B. Hg
C. Mn
D. Mg
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