Our collections of Multiple choice questions and answers focuses on Common Chemical Industries. These questions are chosen from a collection of most authoritative and best reference books on Chemistry. Our aim is to prepare an individual for competitive exams like NTS. One should practice our Mcqs to assimilate knowledge on Common Chemical Industries comprehensively.
Rotation of the crops
Adding lime to the acid salts
Adding manure and growing legumes
All
It enhances plant growth
It is involved in the synthesis of protein and nucleic acids
It accelerates fruits and flowers growth
It is involved in the chlorophyll synthesis
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Straight
Compound
Both a and b
None of the above
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Cu
Cl
H
Zn
Endothermic
Exothermic
Both a and b
No heat energy is involved
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Pt
ZnO + Cr2O3
Fe in fused mixture of Al2O3 + SiQ2 + MgO
All of the above
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Prilling
Evaporation
Condensation
Crystallization
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Urea
DAP
Ammonium sulphate
Ammonium nitrate
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60%
65%
70%
75%
KCI
KNO3
K2SO4
KMnO4
Lime stone
Marble
Chalk
All of the above
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Vlay
Marine shells
Slate
Blast furnace slag
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Dry process
Wet process
Both
None
Root
Leave
Stem
Seed
4
3
2
5
