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  chemistry quizzes(chemistry and industry) Quiz
Question Number 1
The most abundant metal is-
A. Fe
B. O2
C. CU
D. AU
E. Al
Question Number 2
In the reaction with H(Hydrogen) Cl(chlorine) needs the catalist-
A. Mno2
B. Pt
C. Lemon juice
D. Charcoal
E. Mg
Question Number 3
The metal Fe is bestly described in one of the following EXCEPT-
A. it is the most industrialy used metal.
B. it rusts when exposed to moisture & oxygen.
C. it is the most abundant metal.
D. it's cheif mineral ore is Hematite.
E. it is ductile and malliable
Question Number 4
which acid donot react with air(oxygen)exposed Al?why?
A. H2SO4-because of its strength
B. H2SO4-because its unable to penetrate through the formed thin layer(film\in air\)
C. HNO3-because it is not strong acid
D. HNO3-because it is unable to penetrate through the thin layer(film)
Question Number 5
CU (copper) forms a thin layer when exposed to atmospher.this is because-
A. in order to make it's self protected against decomposers.
B. not to be secured against further corrosion
C. not to alow impurities totbe formed.
D. to be protected from further corrosion.
E. to be more attractive.
Question Number 6
Alumunium is used used to make thermite MOSTLY with-
A. Fe
B. O2
C. HNO3
D. H2SO4
E. H3PO4
Question Number 7
Alumunium is used used to make thermite MOSTLY with-
A. Fe
B. O2
C. HNO3
D. H2SO4
E. H3PO4
Question Number 8
Alumunium is used used to make thermite MOSTLY with-
A.
Question Number 9
Of the 4 most basic components of industrially produced ceramic which cannot be found?
A. Barium titanite
B. Alumina
C. Titanium carbide
D. Pure silicon carbide.
E. H2SO4
Question Number 10
Of the allotrops of (p)phosphorous one is poisonus,unstable and stored under water.which one?
A. Red P
B. White P
C. Green P
D. None
Question Number 11
which is FALSE about fool's gold?
A. has the chemical formula FeS2
B. is mineral ore to both Fe & S.
C. contains Fe & AU
D. is called iron pyrite.





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