Calcareous material includes_________________?
A. lime stone
B. marble
C. chalk
D. all of the above
Submitted by :- Jamil Ahmed
CHEMISTRY
Prepare for your upcoming test with a comprehensive collection of Chemistry multiple-choice questions (MCQs), ranging from basic to advanced topics. These Chemistry MCQs cover various sections of the subject, providing you with valuable practice and boosting your chances of scoring well in the Chemistry portion of the test. Whether you’re a student or a job seeker preparing for exams, these MCQs will prove beneficial for your test preparation.
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The cooling of molten urea by air in the tower is called______________________?
A. prilling
B. evaporation
C. condensation
D. crystallization
Submitted by :- Jamil Ahmed
Addition of urea to the soil is ____________ reaction?
A. endothermic
B. exothermic
C. both a and b
D. no heat energy is involved
Submitted by :- Jamil Ahmed
The fertilizers which provide single nutrient from NPK are called ___________ fertilizer?
A. straight
B. compound
C. both a and b
D. none of the above
Submitted by :- Jamil Ahmed
The fertility of the soil is improved by________________?
A. Rotation of the crops
B. Adding lime to the acid salts
C. Adding manure and growing legumes
D. All
Submitted by :- Jamil Ahmed
Nucleic acids direct the synthesis of__________________?
A. Glucose
B. Triglycerides
C. Proteins
D. All
Submitted by :- Jamil Ahmed
Which of the following is the most suitable catalyst for ammonia synthesis ?
A. Pt
B. ZnO + Cr2O3
C. Fe in fused mixture of Al2O3 + SiQ2 + MgO
D. All of the above
Submitted by :- Jamil Ahmed
Which of the following is macronutrient ?
A. Cu
B. Cl
C. H
D. Zn
Submitted by :- Jamil Ahmed
Which of the following is incorrect statement about nitrogen importance ?
A. It enhances plant growth
B. It is involved in the synthesis of protein and nucleic acids
C. it accelerates fruits and flowers growth
D. It is involved in the chlorophyll synthesis
Submitted by :- Jamil Ahmed
The important function of burning zone in the rotary kiln is __________________?
A. to dry the moisture of slurry
B. to decompose lime stone to unslaked lime
C. combination of different oxides like CaO SiO2 Fe2O3 and Al2O3
D. to reduce the impurities
Submitted by :- Jamil Ahmed